A Guide to Computer Security

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Computer Training Textbooks

Computer training textbooks are primary teaching instruments in the field of computer learning. These are manuals of instruction classified according to the basis of subjects. A large collection of textbooks is available in book shops. Many publishing companies publish computer textbooks written by leading professors, to meet contemporary needs in computer education.

Computer training textbooks are published in fine printed format with hard covers. Most of these have graphical representations, documentation with a good explanation of topics and questionnaires. Computer language textbooks, computer application textbooks, programming and networking textbooks and technical reference books are mainly used in computer classrooms. These are useful for both teachers and students participating in a computer program. Apart from professional textbooks, custom versions of textbooks for specific universities are available in the market. These are typically designed with edited versions of full textbooks. Interactive computer textbooks are very useful for improving reading, reasoning, writing and content mastery.

Computer training textbooks are more expensive than other text books. But it is possible to save some money by smart shopping. For college students, the best sources of computer textbooks are university libraries and off-campus bookstores. Libraries feature a good stock of computer training textbooks that can be used throughout the course. For those looking solely for library books, weekends are the perfect time to locate them. Another method of buying computer textbooks is online purchase, because most teachers use the web to post the textbooks required, prior to the beginning of each semester. You can visit online shopping websites including amazon.com, ebay.com, and half.com for new or used textbooks. Leading publishing agents may also be approached for computer training textbooks.

Owing to increased costs, many publishers sell computer training textbooks as a bundle with extra materials such as website access cards, CDs, and discount coupons. Unfortunately, computer textbooks have a comparatively limited market.

Computer Training provides detailed information on Computer Training, Computer Internet Training, Computer Graphic Training, Computer Forensics Training and more. Computer Training is affiliated with Computer Science Education [http://www.e-ComputerEducation.com].

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The Value of a Computer Information Systems Degree

The invention of computers has changed the world. In this, the computer age, almost everything we do involves computers and the Internet. Communication, business, entertainment, and other aspects of human life rely on computers and related technology. It's essential for people to adapt to the computer revolution by making themselves familiar with computer related knowledge. Computer information systems degree and similar courses can provide people with opportunities to benefit from the influence of computers.

Many parents these days are encouraging their children to consider a computer information systems degree for their future career. Parents can sense the trends of the present job market and they know that computer related degrees are a wonderful way of approaching college. A computer information systems degree provides a person with valuable knowledge that are in demand in most modern businesses. Knowledge about computers in today's world gives a person an edge over individuals who are computer illiterate.

I have a brother who was fond of computer games when he was a child. His interests influenced him to go after a computer systems information degree in college and these days he has got himself a lucrative business. It was amazing to see him progress through his schooling. He was very dedicated and interested in his course and earned his degree in a short period of time. My brother has certainly made a wise decision in pursuing a computer information systems degree.

The use of computers is still expanding. The present trends clearly show that computers will continue to play a major role in human life. If you want to be familiar with computers by taking up a computer systems information degree, you can hop on the Internet and discover the available opportunities. Start working your way towards a wonderful computer career via a computer information systems degree.

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Grid Computing

Most industries today have become so dynamic that organisations have to consistently seek and adapt to change, in order to survive and prosper. Factors like more diversified customer preferences, technological advances, increased competitive threats and an intensified global economy are among the forces inducing change. Organisations need to become more adaptable embracing Charles Darwin's view that "it is not the strongest of the species that survives, nor the most intelligent, but the one that is the most adaptable to change".

A survey conducted by PricewaterhouseCoopers in March 2004 shows that 47% of the CEO's of the US's fastest growing companies believe that their most critical success factor is having flexible strategies to respond to accelerating business changes. However, many recently implemented Information Systems still tend to ignore this need for flexibility and at times are hard to scale and customise, thereby limiting the ability of an enterprise to react fast to its evolving business needs.

In the last two decades we constantly experienced a dramatic change in the way we store and process digital information. Every few years there has been an industry breakpoint; an important new computing concept that changed radically the way computers are used and Information Systems are implemented. Examples include graphical and more user-friendly interfaces, the clientserver concept and the Internet. Such factors have somehow aided and contributed to position computers as a necessary commodity. Additionally, with the constant drop in the cost of hardware, and better and cheaper network bandwidth, computers have become even more ubiquitous. The Internet has evolved tremendously and is today considered as probably the most effective communication medium. Whilst technology tends to evolve in a non-linear fashion, Moore's Law has ensured that processing power has been increasing exponentially.

Though this is contributing to easier hoarding and dissemination of information, ICT professionals today still face tough challenges. ICT budgets grew rapidly in the late 90's in anticipation of the Y2K problem. In these last years many ICT departments have been even asked to cut their budgets while they were expected to continue providing an appropriate information infrastructure so as to enable the organisations to augment their products and possibly gain a competitive edge. Hardware replacement cycles are perceived to have increased. Generally speaking, ICT budgets did not grow in these last years in line with the computational needs of the organisations; whilst workloads are still increasing, the capacities to handle them are not.

In some cases increasing a firm's computational needs might end up in a lot of computational power which is not appropriately utilised. Why? Consider for example the utilization of a server machine. Most of the time its real processing capacity is not used at all. However maybe sometimes because a large and long process is executed or the number of connected users temporarily increase, the server might endup experiencing a processing overload. It has been estimated that on average a desktop computer uses only about 5% to 8% of its processing power (EuropeanCeo, 2005). Whilst, as Hendry (2004) reports, load balancing can aid in the distribution of processing and communication activity, similar servers that experience spikes in processor usage are barely used for the rest of the day and eventually end up with a large amount of unused computing capacity.

So the inevitable questions are, is it really feasible to increase and upgrade the firm's single source of computational power if most of the time the existing processing power is not being used? How can we ensure that a firm's computational resources are well balanced and allocated, so as to minimise wastage and eventually, justify any further investment in the ICT infrastructure?

The basic concept that gives insight to the answer to these questions extends back to the 70's when the notion of distributed computing was born. Today, we are seeing increasing interest among business communities in what is termed as, Grid Computing.

Definition

World-renowned organisations are promoting the Grid in a big way and several definitions can be found. It has become a fashionable term. Dr. Ian Foster, a professor at the University of Chicago and director of the Distributed Systems Lab at Argonne National Laboratory, a pioneer in Grid Computing, provided his definition for the layman as being the "technology to enable the sharing of computing resources across institutional boundaries". Research firm, Gartner, Inc., defines grid computing as a way to solve computing tasks using resources that are shared by more than one owner and coordinated to solve more than one problem.

The concept of Grid Computing was initially popular among academics, research and scientific communities. It was used for functions that required a substantial amount of computing power. However in these last years, an increasing number of organisations are early adopting and trying to reap benefits from this technology.

There are numerous examples where Grid computing has been applied. Among the research communities, Oxford University is using Grid technology to analyse 3.5 billion molecules to work out their cancer fighting potential. Same is being done by Stanford University in order to analyse the role protein plays in keeping people healthy. The search for Extraterrestrial Intelligence (SETI) project is another example. Here, volunteers download and install a free program so as to process and analyse massive amounts of data in search of evidence of possible radio transmissions from extraterrestrial life. When tallying up all the processing power that these PC's provide, it's like having one big supercomputer. Grid technologies also played a major role in identifying the world's largest known prime number. This was part of the Marsenne project where scientists identified the 43rd Marsenne Prime 230,402,457-1. - a figure that contains 9,152,052 digits.

Business Applicability

Within business communities, the Grid concept is far more popular among large corporations. Baum, the publishing editor for Oracle Corporation, states that these corporations are initially attracted by the amount of savings that the technology can provide. Mainstay Partners conducted an ROI study to evaluate the enterprise grid technology platforms currently in use at seven participating companies. It was concluded that the adaptation of grid technology yielded an average of 43 percent savings in hardware cost. Much of the savings were credited to the shift from a large symmetric multiprocessor server to a number of lower cost servers. With the use of Grid technology the latter setup delivered similar or at times even more computational power than the larger system, however with fewer costs. Baum's report adds that the grids within these companies were being used for a variety of applications, including enterprise resource planning (ERP), decision support, customer relationship management (CRM), and supply chain management (SCM).

Still, companies that operate in the financial services industry, drug discoveries and weather modeling are initially more prone to benefit from Grid technologies, as they are involved in complex scientific and mathematical calculations and therefore require an added amount of computational power. So are companies that tend to process large amounts of data for their business intelligence activities. However, organisations are increasingly being enticed to adopt Grid technologies even for their transactional based systems, given that Grids may further facilitate storage space Issues.

Challenges faced by Grid Computing

IDC, the market intelligence and advisory services firm, are referring to Grid computing as the fifth generation of computing, after client-server and multi-tier (Table 1).

Yet, according to IDC, the technology still needs to be 'normalised' and has to overcome various challenges. IDC believes that these concerns, in some cases, are more perception than reality, and as organisations gain more experience with this distributed approach, their concerns will be laid to rest.

Additionally, a research conducted by the 451 Group shows that software licensing, security and bandwidth matters are among the things that can disturb grid rollouts.

Conclusion

Whilst Grid computing still needs to find broad acceptance in the commercial space, yet, market analysts state that the technology is here to stay. As Tom Hawk, the general manager of Grid computing for IBM says, "The Web is about sharing information. The grid is about sharing resources".

Sandro Azzopardi is a professional author who writes several articles on various subjects on his web site and local newspapers and magazines. You can visit information about this article and others on: [http://www.theinfopit.com/technology/gridcomputing-1.php]

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Small Desktop Computers

Small desktop computers are smaller than traditional desktop models. It is a good choice in rooms where space is a problem. With small computers, users get sufficient space to keep other items like extra drives and circuit boards.

Small desktop computers are available as slim line models. The computer case is long and wide, similar to ordinary desktop models. The difference is in the height and thickness of the cases. These computers are designed using the same techniques and principles as in a generic computer system. It makes use of both internal and external storages. The system disc can be an internal storage unit. Backup devices and data storage discs can be external devices.

Small desktop computers have advanced features and capabilities unlike the ordinary digital computers. There are small computers with megabytes of memory and large disks. Some computers come with integrated monitor and keyboard. Some computers have robust design and thermal efficiency that can benefit the computers in a wide range of applications. These computers facilitate users to operate more than one processor at the same time. These computers can even function as a server.

Small desktop computers make use of microprocessors and other discrete electronic components. There can be electrostatic discharges from users to these devices. This discharge gets coupled at the circuit board that holds the microprocessor and other components. This may cause damage or destruction to the devices. There are a number of methods used in small computers to solve this problem. One way is to have metallic shields at the connecters of key boards or display interfaces to circuit boards.

Small desktop computers can be used for personal and business needs. It finds usage in areas where large volumes of information are to be stored. With computers, it is possible to perform three dimensional calculations with less computational expenses and to produce sophisticated graphics. In the medical field, these computers can be used to diagnose diseases.

Desktop Computers provides detailed information on Desktop Computers, Cheap Desktop Computers, Custom Desktop Computers, Used Desktop Computers and more. Desktop Computers is affiliated with Flat Screen Computer Monitors.

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It's Easy To Learn About Computers

No problem if you are deliberately avoiding computers. There is no problem of course if you have thought that the computer mouse will bite you. But do you still want to stay unacquainted with computers? Don't you want to learn about computers?

In fact, I can assure you that if you once try to learn about computers you will find yourself very interested. You will find out that computers are not so bad and they are easy to use. You gain so many conveniences using your computer. With just one click of the mouse, you will be able to accomplish many of your daily tasks. For example, you can book tickets for a concert, you can do the shopping online, you can check anything of interest, apply for loans and credit cards, play games, chat with your friends and colleagues, and of course, send e-mails.

What's more, you will even be able to learn about computers online. There is so much information available on the Internet about how to learn about computers. It will be easy to find it, just open a browser, and enter your keywords "learn about computers" in a search engine.

I can tell you about many ways to learn about computers. People who want to learn about computers are able to attend computer courses at local colleges and libraries. There you can find the answer you have searched for. You will learn much about the basic and more advanced applications.

Another way to learn about computers is to buy a book or take it for free at the local library. Relaxing in your sofa, you can learn about computers with a "Dummy" book. There are books with basic information to books that give information for advanced programs and applications.

If you want to learn about computers, there is also another option. Online tutorials and informational websites give plenty of information and advices for people who want to learn about computers. For beginners, I will recommend a web site that gives good basic information about computers and the internet - http://www.externalharddrive.com. Here you will also find a section with most frequently asked questions. Such sites are available also for children like http://www.kids-online.net, and http://www.homeworkspot.com. These sites will combine work and fun so your kids will easily learn about computers.

Adults can learn about computers for the same time as children. It is true that kids pick it up quickly. This can happen to adults as well if they are not so "scared" of the computer. Soon you will be amazed with all the conveniences and facilitations that computers and Internet provide to you. Fifteen years ago, Internet was just a dream, now you can have it in your home. Computers can be found in every home just like televisions. Nowadays, computers are smaller and cheaper than ever.

Everyone on this planet uses computer for some reason. We all use computers as we constantly use our cell phones for example. Are you still hesitating? Learn about computers now!

Morgan Hamilton offers expert advice and great tips regarding all aspects concerning education. Get the information you are seeking now by visiting Learn About Computers [http://www.theeducationannex.com/education/education--learning/its-easy-to-learn-about-computers.html]

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Finding The Best Computers For Sale

Have you bought your personal computer already? And just don't tell me you have a Tandy 1000! I am sure you have hurled it in an empty room. I am talking about a real up-to-date computer. Is it a computer with all Internet access capabilities? Is it one, which is the latest array of technology! Maybe I'm going too far with this computer stuff. I just want you to be sure that you have the proper PC or Mac.

In order to witness the latest achievements of technology you'd better upgrade your computer. Otherwise, you should be acquainted with the wide variety of computers for sale. The computer is such a complicated machine that if fact there is no limit to what is available for sale. Computers can perform many complicated tasks nowadays. Do you want to burn a CD? Do not worry at all! Do you want to have high-speed cable Internet access at home? You will surely have it! Up-to-date machines can satisfy all your whims. You just need to search for computers for sale. If you don't have a proper computer, computers for sale are your only chance.

Now, we must make sure that you are aware of where to look for computers for sale. PCs shopping are not a difficult challenge. Computers for sale are available almost everywhere. I guess that there is even a PC shop on your street. May be one of the best places for shopping for PCs is Circuit City.

Computers For Sale

Then, you should think twice of what you want your personal computer to be able to do. If you want your computer to perform simple tasks like Internet access, sending e-mails and typing documents, it will be easy to choose. Moreover, your computer won't cost very much. For example, you can buy a Dell desktop package for around 300 dollars. This is a reasonable price. The package consists of monitor, tower, keyboard, mouse and often a printer. Another good shop for computers for sale is Best Buy. You can find there great alternatives of computers for sale ranging from Sony to IBM.

Do you prefer to buy a simple desktop PC or you dream of a mini notebook computer? I was very glad to see that nowadays they offer computers for sale as small as a half an inch thick. These computers even work as good as the desktop PCs! Using your computer, you are able to spend less to buy your favorite music. You can do this by simply downloading the tunes to the computer, and then burn them to a CD.

On the World-Wide-Web, a superfluity of computers for sale is available. The choice is so big that you may find yourself lost it the variety of computers for sale. Have you already searched for computers for sale? You can find online everything that is connected with computers in some way. Try to receive an advice that you are offered the best deals on hardware and software. Isn't it time to take a look at the computers for sale online? When talking about computers, things are changing every day.

Morgan Hamilton offers expert advice and great tips regarding all aspects concerning computers. Get the information you are seeking now by visiting Computers For Sale [http://www.thecomputerinfoguide.com/computers/computers/finding-the-best-computers-for-sale.html]

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Best Budget Desktop Computers

Best budget desktop computers are necessary to get desktop computers of preference within ones budget. It will have all the basic features a desktop computer should have.

Best budget desktop computers basically come with four components. They are the monitor, computer case, keyboard, and mouse. It is available in two configurations - mini tower model and desktop model. The computer case appears vertical and stands in upright position in mini tower models. In desktop models, the cases are designed in such a way that it appears horizontal on desks. The monitors are large and graphic friendly in best budget computers. The computers can be used to read and write CDs and to play video games. Scanners, printers, and web cams can be connected with best budget models.

There are certain tips to keep in mind while buying best budget desktop computers. First, it is necessary to see the amount you have for computers. Next, decide the purpose. The computers may be used for educational purposes or office use or simply playing the latest video games. Desktop computers with flat monitors are well suited in rooms with space problems. Another important factor to consider is the processor. Even for budget priced desktops the processor should have capacity of about 1.4 GHz. It is better to have a built-in graphic card for best budget computers. Memory capacity and the number of media files needed for computers are selected according to the budget and usage.

Best budget desktop computers are not easy to get in recent days. This is because of the tremendous decrease in the number of companies that provide budget desktops. Budget computers without monitors are obtained at around 600 dollars. The computers with monitors need an additional pay of about 150 dollars.

Desktop Computers provides detailed information on Desktop Computers, Cheap Desktop Computers, Custom Desktop Computers, Used Desktop Computers and more. Desktop Computers is affiliated with Flat Screen Computer Monitors.

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Simple Computer Maintenance for Small Businesses & Nonprofits

Early this year, a quiet turn of the calendar marked Year 6 for $1.8 million worth of desktop and server computers at a cutting-edge product development company where I was CIO. The strategy used to put this into place was simple - we based it on our cars.

The average automobile, if you follow the maintenance schedule, protect it from rust and drive reasonably, should last you six to 10 years. The maintenance schedule is based on your use of the car as a complex tool to get you from Point A to Point B. Your computer is also a complex tool and your usage will determine its maintenance and protection needs; how you follow through with those needs will determine how long you'll get to use your computer, and when you'll need to put monies toward its replacement.

This five-part routine is based on my experience since the early days of personal and "mobile" (Kaypro II) computers in the 1980's. It is equally applicable to both Windows®- and Macintosh®-based computers, although I use Windows® XP as an example throughout simply because of the Windows® prevalence. I am assuming an office / cubicle-based computer. If your computers are located in dusty warehouses or manufacturing floors, step up the physical annual maintenance routine to be quarterly.

1. VERIFY YOUR PHYSICAL SETUP

Just as it's hard to keep a car in top condition out in a pasture, it's hard to keep a computer functioning well if it's in a poor environment. There are three factors to consider: temperature, air quality and electricity.

For most computers, room temperature should be between 60-85 degrees Fahrenheit with a humidity level between 50-75% (to minimize any static build-up). While most offices are kept at this level, check with your landlord to ensure when you leave at night that the HVAC does not change (or is cutoff) to be above or below these levels.

Air quality is important because computers require air circulation to prevent overheating. There are two rules of thumb: First, the vents on the case need a good 3-4 inches of clear space (no blocking cable tangles, etc.) to get good airflow; that's roughly the width of your hand from thumb to pinkie finger. Second, if you use air cleaners / ionizers, keep them at least 2 feet from the computer or any particles heading for the cleaner will be drawn into the computer first.

Electricity is a dominant factor in determining the longevity of your computer. It's akin to the oil, fuel and coolant in your car's engine. Poor or dirty engine liquids will take their toll on your car and shorten its life. So-called "dirty" electricity (brownouts, surges, sags, spikes, etc.) will damage your computer, and your files, far more effectively than any virus.

There are four steps to good electrical conditions:

1. Ask your local power company to provide you a power profile / graph with the range of electrical sags and spikes entering your building over a typical billing period (if you lease, you may need to ask your landlord to obtain this). This will show you your problem areas and times. I recommend you obtain this report once per season (or quarter). We discovered a spike in power that occurred at 8:32am every morning when the neighboring manufacturing plant started its production lines.

2. Get good surge protection with battery backup. Plug your computer case and your monitor into the battery-back up portion - and your docking station if you have a laptop; everything else (including printer) simply receives surge protection. There are three goals for the 5-10 minutes of battery backup: provide you time to save your work; assess if this is just a momentary flicker or a longer outage; and then, for an outage, to turn off your computer.

3. After an outage, wait five minutes before turning back on your computer. If the power grid has problems, they will usually show up within less than 3-4 minutes after power is first restored.

4. Power sag problems can be noticed when your local printer suddenly prints comic-book characters ("@#!l%^", etc.) in the midst of printing. Beyond brief battery backup, contact the power company or a company like APC to work with you on solution options.

2. VERIFY YOUR ELECTRONIC SETUP

Automation is the name of the game when it comes to preventive computer maintenance for the busy small business owner or nonprofit executive. This is one area where automobiles are playing catch-up. There are three items that you must automate : virus protection, critical software updates and computer firewalls that are either part of the operating systems (such as Windows® XP's firewall) or part of your anti-virus software.

I recommend getting virus protection software that combines virus and spyware protection at a minimum; add the firewall option if you do not use an operating system with a built-in firewall (such as Windows® XP). Critical updates are just that - software patches rated as "critical" by the vendor; all other patches, enhancements and updates can wait for the end of the year.

3. MONTHLY PREVENTATIVE MAINTENANCE

Once a month, perform two tasks: clean your temporary files and empty your trash/recycle bin (you can do this with the "Disk Cleanup" utility in Windows® XP); and then defragment your computer (run the "Disk Defragmenter" utility in Windows® XP). Think of this as checking your oil, tire pressure, window washer fluid, and cleaning out the kids' toys in your car.

4. ANNUAL COMPUTER MAINTENANCE

Just like a car needs a tune-up once a year, so too does a computer. There are two parts: electronic and physical.

The electronic tune-up consists of the monthly maintenance plus a scan disk of your hard drives and a manual check of all software for updates. In Windows® XP, utilize the "Check Disk" utility - check both boxes to fix file system errors and scan for bad sectors.

For each software package such as Adobe® Reader or Microsoft® Office, check for updates using their built-in method or via their support/downloads website sections. Although you may not be required to do so, I recommend restarting your computer after each different software package has been updated. This will allow the various bits of code to properly "register" with the computer and cause any error messages to be isolated to the last update you did (versus just "something").

The physical tune-up is short, yet can be intimidating. Don't let it be.

First, turn off and unplug your computer and your monitor. Second, unplug the rest of the cables from the computer case - the network cable, the printer cable, etc. Inspect the cabling for any broken or frayed bits. Third, unscrew the case (generally in the back) and lift it off (some computers, like Dell and HP, have flip-cases that you press down a plastic button to open).

Now, with the hose/bristle-sweep attachment of your vacuum, clean off the air vents on the outside of the computer case and the monitor. Then, gently vacuum out the dust from inside the case. This is not a detailed spring cleaning; go lightly and quickly - it should take you less than 30 seconds.

5. INDEPENDENT "HEALTH CHECK"

At least once every 18 months, if not yearly, ask someone you trust, or who comes recommended, to do a "health check" of your systems and processes. Think of this as your "10-point" check or other type of review you might subject your car to prior to a big trip. You want this done by an IT professional who is a generalist, not someone specialized in a particular aspect like back-up software or databases, or who has a solution in need of a problem. You want personalized advice focused on your technology, business and environment.

For recommendations, look on the web at generalist IT and consulting professional societies like ICCA.org, SPConsultants.org or IMCUSA.org. Educational institutes and nonprofits should also look at technology providers on NTEN.org or TechSoup.org.

If you or your organization cannot devote the time away from your business or mission, or are uncomfortable handling this maintenance, treat it no differently than your car - ask for help for an IT professional or service firm. Use the annual "health check" process to see their quality of work prior to any long-term commitment.

Following these simple guidelines will help you get the best benefit out of the technology you have for the least cost.

Copyright 2006 John Avellanet

John Avellanet is the managing director of Cerulean Associates LLC, a Virginia-based consultancy focused on helping clients improve their bottom-line by aligning IT and Compliance with business strategies. Cerulean offers a workshop for nonprofits on Cost-Effective IT Strategies and a part-time CIO service for nonprofits and small to mid-sized businesses. More information and downloads can be found on their website (www.CeruleanLLC.com).

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Home Computer Rentals

In recent years, the computer has become an indispensable part of human life. It has also tremendously influenced the activities, attitudes and the way masses think all over the world. Nowadays, most households have a computer. But, those who do not own one can get high tech computers for rental. Home computer rentals are a cost effective approach to access the latest technology for personal and professional use.

Depending on the need, you can rent any type, model, brand and number of computers for your home. There are countless companies that provide home computers for rental. Aardvark and Capital Computer Rental are two of the prominent companies dealing with home computer rentals. Most computer rental companies operate online, to meet the immediate demands of customers. Today, almost all top brands such as Intel, Dell, Compaq, Toshiba and Apple can be availed on rental for household purposes.

The main benefit of home computer rentals is that you get the opportunity to use recent models and the latest operating systems. Thus, you need not upgrade or change your home computer with the rapid changes in the market. Home computer rentals also avoid all the hassles of computer maintenance.

Depending on the need, computers can be obtained for short term and long term rentals. Rates will be based on the period and model of the rental. Generally, laptop computers are more expensive than desktop computers. The differences in rental rates are marginal from one company to another. It is always recommended to consider the duration while renting a computer for household use. Purchasing a computer will be a better option than renting it for a long period. For example, the rental cost of a Pentium 4 desktop computer is around $149 for a week; for a year or a month, the rate will be much higher. But a Pentium 4 desktop computer may be bought for around $4,000.

As the cost of new computers is drastically coming down, home computer rentals are only good for short term household purposes.

Computer Rentals provides detailed information on computer rentals, laptop computer rentals, computer projector rentals, desktop computer rentals and more. Computer Rentals is affiliated with Laptop Computer Sales.

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Computer Projector Rentals in Florida

Computer projector rentals in Florida provide all kinds of computer projectors for short and long term rental in the state. Florida is one of the prominent hubs for all major activities, business centers and educational institutions. Today, there are many rental companies in the state, specializing in computer projector rentals.

Computer projector rental is the most apt and economical way to possess expensive computer projectors for limited time duration. Today, the computer projector has become an indispensable part of digital presentation in almost all schools, colleges and companies. The enhanced qualities of computer projectors have imparted tremendous changes in the method and quality of presentations. These qualities have led to the popularity of computer projectors among people in all sections of society.

RUSH Computer Rentals Inc., Fort Lauderdale Computer Rental Service, and Saint Lucie Co. Civic Center are some of the major companies in the field of computer projector rentals in Florida. Most of the rental companies in Florida handle both corporate and personal orders. There are also online computer projector rental companies that provide services to people in and around Florida.

Depending on the need, one can avail computer projectors for rental in Florida on daily, weekly, monthly and yearly rentals. All types of computer projectors, ranging from mobile computer projectors to meeting room computer projectors, can be availed for rent. Almost all top brands of computer projectors including Infocus, Proxima, Mitsubishi and Toshiba are available in the state for rental. The rental rates are determined by the model and the duration of the rent. It will fluctuate from company to company and from city to city.

However, getting computer projectors for rental is a complex task, as most projectors are designed for different operating systems and even processors. Thus, it is always advisable to determine the type of the computer projector you need before renting it.

Computer Rentals provides detailed information on computer rentals, laptop computer rentals, computer projector rentals, desktop computer rentals and more. Computer Rentals is affiliated with Laptop Computer Sales.

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Protecting Your Computer

I have been around computers for years. I even teach on Introduction to Computers class at a four-year university. Despite my knowledge of computers, I was not immune to the problems that viruses and spyware can do to a computer. My computer was attacked and it was so bad I ended up replacing my hard drive. Does that sound scary to you? If so, I apologize. At the same time, I hope that my experience can benefit you.

While many computer users are familiar with the term virus, not as many understand the term spyware. Simply put, spyware is software that performs certain behaviors such as advertising, collecting personal information, or changing the configuration of your computer, generally without your premission. Here are a few things that can happen if you get spyware on your computer.

* Pop-up advertisements will appear even when you are not on the internet.

* Your home page (the page that comes up when you first open your internet browser) changes all of sudden and you don't know why.

* A new toolbar appears and you can't seem to get rid of it.

* Your computer takes longer than usual to complete certain tasks.

* Your computer crashes a lot when it never used to.

Just reading the above list should be enough to encourage you to read on and do what you can to prevent viruses and spyware from attacking your computer. Below is a list I compiled of things you can do to protect yourself from viruses and/or spyware. Following these suggestions doesn't mean you will never have a problem. However, it should lessen the chance of it happening.

1. Everyone should have good anti-virus software on their computer. This is especially true it you use the internet. I use PC-cillin Internet Security 2006 on my computer. Before that I used Norton's Internet Security. Both are good but only work well if used properly. If you are a beginner computer user, I would recommend Norton over PC-cillin. However, PC-cillin is a good program for those who are more advanced computer users. It requires a little more patience to set up and a better understanding of computers than Norton's does.

2. While it is nice to have Internet Security software, one must make sure it is turned on and that it is updated weekly. New viruses are being created daily and if you don't update your anti-virus software weekly your computer is open to attack by new viruses.

3. Make sure you have a good firewall and that it is turned on. A firewall helps protect your computer from outside attacks. Again, a good Internet Security program such as Norton's and PC-cillin come with a firewall. However, remember they only work if they are turned on.

4. I use two free programs in addition to PC-cillin to give me a little extra protection from spyware. I run these programs once a week to ensure that my computer is free from spyware. The two programs I use are:

SpyBot - Search and Destroy

Spyware Blaster

Both these programs can be downloaded for free at http://www.downloads.com

5. I use a free program that checks for advertising trackers and lets me get rid of them. You can download a copy of this program at http://www.downloads.com. The name of this program is: Lavasoft Ad-Aware SE Personal

There are a few other things I would like to mention concerning viruses and protecting yourself from them.

a. When you receive an email from someone you don't know and it has an attachment. Never open the attachment. Often times these attachments can have viruses in them.

b. If you receive an email from someone you know with an attachment and you weren't expecting it, don't open the attachment. Contact them first to make sure they sent it. Sometimes a virus can send out emails without the person even knowing.

c. Be careful when you are downloading software or programs off the internet. Often spyware software will install during the installation of other software you want such as a music or video files. Whenever you are installing something on your computer, make sure you carefully read all disclosures, including the license agreement and privacy statement. Sometimes the inclusion of unwanted software in a given software installation is documented, but it may appear at the end of a license agreement or privacy statement.

d. Be careful when you use a file from someone else's computer. If someone gives you a disk, even if it is your best friend, run a virus scan on the disk before opening any files. It is possible for the file to have a virus without the person knowing about it.

I hope these tips will prove helpful to you. If you have good protection and exercise caution you have a much better chance of getting through your computer life without the headaches of viruses and spyware. However, remember there is no guarantee that it will never happen to you.

A computer virus is a program that invades your computer system, hides there, and replicates itself. Viruses spread when you launch an infected application or start up your computer from a disk that has infected system files.

Donna Rivera-Loudon
Tips on Computers and Technology
Donna has an MBA in Information Technology and is currently a Tupperware Director and CEO of her own company. She also teaches online Management and Business classes for a local community college as well as computer classes for a four-year university.

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IBM Teams UP with Computer Science Teachers Association to Provide Free Online

Online courses can now be obtained free of charge. These providers of free online computer courses offer free course materials that can be freely downloaded from their respective websites. But the main thing here is to assure the credibility of the sources and accuracy of the detailed information on a specific course. If such a provider has enough experience in the IT industry to back their claims, chances are, you're getting the best free online computer course deal in the country.

Now always remember that free online computer courses can be obtained by just acquiring a free set of educational materials on a specific field of interest. If free educational materials on computer courses are what you want, then you should consider getting these from IBM and the Computer Science Teachers Association. Through accredited schools in the country, that is.

Now these two top American IT specialist groups have actually teamed up with each other so as to provide free online computer course materials on various tech areas. The tech areas cover a wide range of specific skill-development training materials, such as free online computer course materials on advanced handheld equipment usability, JAVA-based programming, web design and development, Flash, and SQL programming. These free computer course materials have integrated a system to match each individual's skill level in a certain area of computer technology. The online system provides the distance learners the option of dictating their own pace when it comes to the learning process. Plus, since it's an online computer course they're availing, they could easily take on fun travel holidays even while continuing with the course.

There are free materials for beginner, intermediate, and expert learners, respectively. IBM and the Computer Science Teachers Association have created these materials so as to be integrated on the educational system of the country. With this, these free online computer course materials would be handled by each accredited educational institution.

For a beginner, these electronic computer-related training materials would be very useful. Compared to other online computer training courses, such digital materials do not need intermediary skills in computer navigation and basic computer software operation. In addition, these free digital materials do not require a learner to have the skills in navigating through the internet. Of course, the reason for this is quite obvious. If it's an online computer-related course a learner is intent on studying, this person must possess internet browsing and computer navigation skills that range from beginner levels to near-expert skills. But what IBM and the Computer Science Teachers Association have made accessible even to beginners are the materials themselves. Aside from the fact that these learners are given free online computer-related course materials based on their choice and skills, they can just download these free course materials and view them offline. This makes such materials accessible even to those without internet browsing knowledge. Some materials or documents are even available in non-electronic or hard copies, which make learning even more accessible to those without proper computer navigation and software operation skills.

On the other hand, intermediate to near-expert computer and IT specialists can also benefit from these free online computer course materials. The main reason for this is that these free online materials from IBM and the Computer Science Teachers Association have passed the strictest standards when it comes to quality and accuracy. Through the documents made available by the team-up, students with enough background on IT-related topics and subjects could already gain substantial knowledge in his or her chosen field. Thus, these free online computer course materials can greatly help in making the data from free online computer courses, or even the paid ones, virtually usable and easy to understand. In this sense, the free electronic course materials by IBM and the association can even be used as a stand-alone method of learning each field of IT; this could be very much advantageous to those who possess average to above average computer skills. Another additional bonus of these materials is that students could easily set their own pace of learning, without any pressure whatsoever from online course administrators who give out tight deadlines for projects and modular activities.

For more valuable information on college course online and computer course, please visit http://www.coursenotes.com

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Industrial Single Board Computers

Single board computers are small circuit boards that have all the components necessary to function as a complete digital computer. We do not see them often and when we do, we have a hard time recognizing them. However, most of us must have used a single board computer in one form or another. These components are often embedded in cell phones, fax machines, GPS receivers and other electronic products that make use of computer technology.

Electronic products are not the largest market for single board computers. They find wider use in industrial applications. Such computers are called industrial single board computers, or simply industrial computers. They are used for a variety of industrial functions. Most of these computers are embedded in industrial machines that perform complex tasks, while others are arranged in a rack-mount format and are used for data acquisition and processing, as well as in product research and development.

Industrial single board computers are different than your regular home or office desktop computers. They are even quite different from other single board computers embedded in electronic products. These differences are dictated by their industrial functions. Industrial single board computers are usually designed to perform a solitary task, unlike desktop computers that are for multitasking. Because they are used in industrial processes, industrial single board computers are specifically designed to withstand various industrial factors such as shocks, vibrations, humidity, electromagnetic interference, radio frequency interference, dust, flash and mist.

Looking at the history, most industrial single board computers were initially manufactured in-house or by companies that use them. There are several reasons for this. First, industrial single board computers are often used for company-specific applications, so companies find it more practical to hire engineers to manufacture their own single board computers m rather than let another company manufacture single board computers for them.

Another reason is the lack of standards for single board computers, so the development in a particular single board computer does not necessarily affect other single board computers. Everything changed, however, when PCs began conquering the computer world. Shortly after the PC dominated the computer scene, standards for single board computers started to appear. These standards gave rise to the creation of off-the-shelf single board computers that conform to particular standards and can be programmed to perform specific tasks.

Because these single board computers cost less and are usually updated with new technologies, many companies have opted to use them rather than develop their own industrial single board computers. Some companies still opt for custom single board computers and purchase them from manufacturers rather than develop them in-house.

Single Board Computers provides detailed information on Single Board Computers, Embedded Single Board Computers, Industrial Single Board Computers, High Performance Single Board Computers and more. Single Board Computers is affiliated with Office Workstations.

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About The World Of Computer Building

If you are having trouble with your computer and would like to have it up graded. Or if you would like to just upgrade your computer for better performance. For gaming or graphic solutions or for better multitasking endeavors.

If you have a computer a lot of the basic parts in that computer are reusable, and not necessary to change out. Basic components would be the CD/DVD Rom A-Drive, HDD, and a lot of times the memory. By using the computer parts that are reusable you can save yourself hundreds of dollars, and be able to have the perfect computer system for your needs.

A computer tech service can cost hundreds of dollars for the most simple of problems. Just to take the side off the computer will cost an individual no less then fifty dollars. Let's say you are having a simple problem with your computer. Maybe one of your drives in the computer will not boot up. This can cause problems that will make the computer act very bad. So bad that you would think there was a major problem with your computer system. But because you don't know or understand how the computer works, and that the computer components all work together, and are tied into the motherboard of the computer. Or mite be hooked on the same cable that is hooked to the computers motherboard. You could in turn end up with a four hundred to seven hundred dollar computer repair bill. For a simple five dollar computer cable, or a thirteen dollar A-drive or a thirty dollar cd-rom drive.

The bottom line is this I have seen and talked to people how have spent as much money to repair their computer as it would of coast to buy a new computer. Myself I can't really understand that reasoning. Maybe it's because there is information on the computer that you really don't want to loss. Well let me just say this. If that's the case then you need to know that there are ways to retrieve that information off that computers hard drive. You don't have to loss that information. You just simply have to go after it. Unless the computers hard drive is shot, and then the information is lost any ways.

Building a computer is not hard you just have to know what the computer components are, and where the computer components go inside the computer. You don't have to know in great detail of how each computer component works. You just need a basic simple understanding of what each computer component dose.

Robert Emler: If you would like to lean just how simple it is to partake in building, and repairing your own computer. Something that will in no doubt save you hundreds of dollars go to. [http://pcextream.com] If you still would rather not go down this rout of computer building. But you would like to save hundreds of dollars by simply upgrading your computer system. I would be more then happy to help you do this. For a fee way less then you local computer tech shop would charge you.

This is all you need to do. Provide me with the information. Including any parts that you have that are reusable. Along with the amount of money you are willing to spend to achieve this. I will then get back with you, and let you know what I can do for you. If I can’t save you at least two hundred dollars or more towards the purchase of a new computer then I will let you know of your options and benefits of going either way.

To contact me you can send me e-mail at bob29tie@neo.rr.com

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Necessary Computer Training for Computer Repair and Building

In a world full of internet users and computerholics, it is crucial that you have an extensive amount of knowledge. With such an abundance of companies turning to computer repair and building, it is no wonder that thousands of people are now trying to turn it into a career. Since computers have taken over our every day activities, careers in computer training and computer repair have flourished. Although it is one of the hardest jobs in the industry, it is not only rewarding, but filled with great connections.

In order to get a job as a computer repair technician or a computer builder, one must have the appropriate amount of computer training. After all, CBT is crucial when you are showing a client the work you have done. Chances are not many firms will want to hire you if you do not have the right computer training. Surprisingly, these two fields are the most difficult because they require more logic and skill. Unfortunately, most of this knowledge will only come from computer training courses. However, there are a select few who have developed it from having their own clients and avoiding the education route.

If you want to succeed quickly, CBT is really the only way to go. There are those who have been repairing and building computers since they were fifteen, but only a select few succeed in a world of educated technicians. In order to get a great job right out of school, it is crucial that you sign up for a CBT program. These computer training classes will teach you not only about electronics, but also about every part that makes up a computer. While you won't be as knowledgeable as an electrician, you still will have a basic idea of how electronics work. It is great for people who want to build computers, as they are taught how to build each part.

After you learn about the computer parts, you will take computer training courses that teach you how to trouble shoot a problem. With thousands of computers in homes, it is very likely that these people will come across problems every now and then. Therefore, if you are planning on going into the computer repair field, this is a very important factor to know. It is imperative that you study hard and pay attention to all of these concepts, because you will need these skills in the workforce. The best part about these computer training programs is that it is very hands on. Many instructors will give a student a computer with a virus or an extensive problem. They then have to troubleshoot it until they fix the error. This will give them practice for real life situations, incase they cannot figure out a specific issue.

Once you have completed your computer training, you are able to get you're A-1 certification. This degree will allow you to work as a computer technician, whether it is in the repair or building field. Although this job is extremely hard work and sometimes physically challenging, it makes you feel good to know that you are needed. Thousands of clients a day rely on your help, thus giving you a sense of knowledge and pride to know that your job is important. No matter what you decide to do, computer based training is the only way to go. From web developing to computer repair, these computer training courses will give you the knowledge to apply it in any area.

Natalie Aranda writes on computer and the Internet. After you learn about the computer parts, you will take computer training courses that teach you how to trouble shoot a problem. If you want to succeed quickly, CBT is really the only way to go. There are those who have been repairing and building computers since they were fifteen, but only a select few succeed in a world of educated technicians. In order to get a great job right out of school, it is crucial that you sign up for a computer training program. These computer training classes will teach you not only about electronics, but also about every part that makes up a computer.

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Free Computer Games

Online computer game providers often promise free computer games. But not many game providers offer free computer games. Game manufacturers often use the term free computer games to attract the attention of the buyers. Here we discuss some methods to download free computer games. The simplest way to get free computer games is to download the free game demos. Almost all computer game sites offer demos of their computer games. The demos are quite similar to the original computer games. The computer games now cost you more than $40 per title. So, from the buyers' perspective, it's always beneficial to download the demos first to get a feel for the games. Keeping the buyers' viewpoint in mind, the computer game manufacturers offer free game downloads. Thanks to free computer games, buyers can check out the games.

The demand for free computer games are always on the rise. That's why leading web portals such as MSN and Yahoo have started offering an extensive range of free computer games. Free computer games offer the opportunity to try the games before you ultimately decide to buy. The free computer games are mostly time-bound. The games expire on a certain date. During the trial period, the buyers can get a fair idea of the full game version. That's why people prefer to check out the free computer games before they buy.

However, while downloading free computer games, you should keep some facts in mind. You must download free computer games only from those sites that are authentic. The game development companies you are targeting must be certified. This way, you can ensure that the free game downloads are free from bugs and viruses. As a buyer, you should not compromise with the quality of free computer games.

Computer Games provides detailed information on Computer Games, Free Computer Games, Online Computer Games, Kids' Computer Games and more. Computer Games is affiliated with Online Arcade Games.

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Sixth Generation of Computers

Technology advancements are often quantified and identified by the terminology "generation." Each year, the product development process improves, this is deemed a generation. With each new generation of computer, the motherboard and silicon footprint decreases and the speed, power and memory power increases.

Progression of Computers

Computers have come a long way since the first generation vacuum tubes for circuitry and memory magnetic drums. The first generation computer utilized assembly language programming or high level programming languages to execute instructions for the user. These early computers required a lot of electricity to operate and also generated a lot of heat that was difficult to displace.

The second generation replaced the vacuum tubes with transistors, which were a primary component of microprocessors today. Transistors were invented in 1947 in Bell Laboratories. These devices were preferable to vacuum tubes that emitted a significant amount of heat and slowed processing times.

Transistors opened the door to faster processing. The latest microprocessors contain tens of millions of microscopic transistors. Without the transistor, we would not have the same level of computing power that we have today.

The transistor was invented in 1947 but did not see widespread use in computers until the late 50s. The transistor was far superior to the vacuum tube. This allowed computers to become smaller, faster, cheaper, more energy-efficient and more reliable than their first-generation predecessors.

The third generation computer involved integrated circuits. These circuits are often referred to as semiconductors, because of the substrate used to design the circuit. Semiconductors dramatically increased the speed and efficiency of the computer. Semiconductors also decreased the overall footprint of the computer. As the semiconductor packages become smaller, designers produced smaller laptops and desktop computers. Minimalist designers and chiropractors rejoiced with the weight and size reduction.

The fourth generation marked the production of computers as we know them today. Microprocessors were introduced in this generation of computers. The computer processing speeds increased exponentially, as the "brain" of the computer mastered complex computations. This generation of computer allowed manufacturers to lower the price to make computers available to the common household. Computers, however, were still not as cost effective as they are today.

The fifth generation of computer added artificial intelligence to the computer to improve the speed and efficiency of advanced computations and graphic displays. Game playing, expert systems, natural language, neural networks and robotics were all capabilities of the fifth generation computer.

Neural networks were particularly important in this generation of computer. The computer could mimic actual neuron synapses in the human body. These complex mathematical models were handled with ease through the fifth generation computer. However, scientists still needed more computing power to accomplish advanced robotics and other language computations.

The Sixth Generation of Computer

Not only does the technology improve, but the price decreases as the technology improves. The sixth generation of computer provided consumers with the opportunity to have more power on a smaller footprint. The sixth generation also introduced voice recognition. Improved technology allows the computer to take dictation and recognize words. Computers have the ability to learn via a variety of advanced algorithms.

The use of nanotechnology is a characteristic of sixth generation computers. This significantly increases the processing time of the computer and help consumers. Computers with multiple CPUs can perform sophisticated calculations and multitask. When a single CPU can perform multiple tasks at once, this is considered multi-tasking.

When qubits or quantum bits process calculations, it is typically faster than conventional computers. This technology works in conjunction with the computer's processor and memory. Complex languages such as English, Chinese, French and Spanish are easily processed with the use of qubits or quantum bits. Computers can now understand and interpret numerous languages with the new advanced technology available.

This new advancement will allow students and the disabled to speak commands into the computer without touching the physical device. Voice recognition is also helpful in laboratory clean rooms, surgical operating rooms or even use in customer service. Voice recognition will significantly enhance the scientist's ability to create new technology.

Voice controlled games and typing applications are easy with sixth generation applications. Avid gamers will view video games in incredible detail with life-like motion. Parallel processing enables faster speeds for video games. As the semiconductor footprint becomes smaller through the use of nanotechnology, the user has more flexibility in the use of the computer.

Conclusion

Sixth generation took advanced computing to a new level with voice recognition. Consumers can only imagine what the seventh generation of computer will bring. Consumers will look forward to these new advancements as they develop.

TechiWarehouse.Com is a very simple yet informative site to say the least. The whole point of this website is to let programmers, network technicians, database designers, computer beginners, etc... of all kinds to come here, quickly look for what they want, and get the heck out. The purpose of the internet is to provide and share information, quickly and efficiently. So why keep the general population of the web away? Whether the visitor is a code, web, script, or designer programmer; network admin, user, part of a workgroup; and so on there is something here for all. Since people should stick to what they do best, we have sworn not to let down the IT/Web community.

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Hurricane Proof Computer

Part I: Backing Up Data And Things to Have

Hurricane season or not, you should always be backing up your data. Whether you plan on riding out the storm (a bad idea) or evacuating to another location, you should have a backup of your computer data either on an external hard drive or optical media such as CD-Rs or a DVD. Be sure to keep your data in a very safe place, such as a water proof safe. Never leave your backup by your computer.

Next, you should have the following things to make life after the storm easier:

1. Phone numbers for insurance, computer or computer parts companies, and phone numbers for all local ISPs (including dial-up and satellite).

Having your insurance phone number and phone numbers for your computer company will help get your computer replaced faster if it is damaged. I can't stress enough how important it is for you to have phone numbers and even access disks for all of your local ISPs! After Katrina, the Internet was the only way many people could contact the outside world. As fate would have it, my broadband was down for 3 weeks and none of the other broadband ISPs would except new orders due to the storm, leaving me with my old friend Dial Up, whom I thought I had buried 8 years ago. Your best bet is to use a satellite ISP as they have no equipment that can be destroyed by a hurricane and cause an outage.

2. Back ups of all your file, have all application and game discs, CD keys, drivers, and operating system discs on hand.

3. Photos of your computer as well as proof of what parts are inside.

In the event your quad SLI rig is destroyed, you don't want your insurance company to replace it with something of a significantly lesser value, do you? It's very easy for people to claim "I had this, this, and this and it all cost me $3000 last month." after their 3 year old Athlon XP rig is destroyed. As a result, your insurance company may be hesitant to replace your expensive computer parts unless you can prove you own them. Also know to what extent your insurance (including flood insurance) will replace damaged property. While some policies will cover the replacement cost of damaged property, some may only cover part of the damage cost. Also know what your deductible is.

4. Blog or Social Networking Profile

Social networking sites such as myspace were great after Katrina. Friends could find out where other friends had evacuated to simply by reading each others' myspaces.

5. Generator and Gas

A generator can power many things, including home computers! Check with your local generator supplier about any local laws about generators, how to safely and properly set one up, and how well they will work with computers. Because generators provide unstable power, a battery backup UPS and a surge protector are a must. Do not count on gas to power your generator being available in the aftermath of the storm. It's best to have a good supply of gas as well as a few empty gas containers on hand.

Part II: Evacuating with Your PC

Like any family members or pets you may have, your PC isn't something to leave behind if you can avoid it. While your first priority should be getting out alive, you should consider bringing your PC with you if you can room in your car. You can't count on your destination to have good computers, high speed Internet, or any entertaining activities for that matter. Being in another place during a hurricane is stressful. Between watching your home town being walloped on CNN and The Weather Channel, the people around you as well as yourself will be tense and worried. Having a nice computer to browse the web with and play Battlefield 2 is a sure entertainer. In fact, the Internet was the only place where I could get information about my very neighborhood after the storm! Local newspaper message boards were packed with evacuees from all over my area and had plenty of information about damage to share.

Even if you can't bring your PC, at the very least bring your hard drive with you! If your home is looted in the aftermath of the storm, the last thing you want is your personal data in someone else's hands. Be sure your hard drive is in an anti-static bag to avoid needless damage to it.

If taking a long road trip, you should probably place some sort of padding or foaming (even a blanket will work) around your computer or hard drive to protect it from the vibrations of the car. Don't bring your monitor unless you have an LCD and there's room for it.

Part III: Leaving Your PC at Home

If you don't have room for your PC in your car, don't plan on staying with it during the storm. There are several safeguards you can take to prevent unnecessary damage to your computer:

1. Cover any open parts of your computer case (such as fans and vents) with tape.

Don't use duct tape unless you want to risk taking paint off your case or a sticky mess.

2. Cover your computer with as many trash bags as you need. At least 2 trash bags per computer are recommended.

3. Consider how high your home is above sea level, the risk of flooding, and other factors.

If you know your home could flood, you should put your computer on the second floor. But if you know your roof is weak and could easily blow off, don't put it on the second floor! Find an enclosed space with no windows (such as a closet) as close to the center of your home as possible. If your computer case has a side window, make sure it's facing towards the ground or against a wall. If you can, place other objects around your computer to offer it additonal protection from blowing rain and flying debris.

Part IV: When the Worst Happens

In the event your PC becomes damaged during the storm, don't fret. If the damage is from a fallen tree or a piece of flying debri, there is nothing you can do. If your computer becomes flooded, however, there are steps you can take to recover it. Below is a basic guide on how to recover a flooded computer.

1. Do not turn on the computer! Make sure it is unplugged!

While you may be anxious to see if your computer can run, don't do it if you know it's been exposed to water. You'll just end up causing more damage if you do. Remember to keep your computer unplugged.

2. Remove components that work.

If you can see a water line in your computer, take out all the components above it and put them in a safe place.

3. Let your computer dry.

Let your computer dry for a week or so. One drop of water in a running computer could mean disaster.

4. Remove the CMOS battery and other parts.

5. Use a solution of 90% alcohol or more to wash the various components of your computer, including connectors. If necessary, use a paint brush to remove stubbon crud.

6. Let your computer dry completely.

If the above doesn't work or you have data you can't risk losing on your hard drive, consider professional computer recovery. Do not plan on salvaging the power supply, CMOS battery, the hard drive, optical drives, or any fans if they have been flooded. Also remember to take pictures of any damage to your computer before you attempt to fix it for insurance purposes.

Hopefully this guide will help people save their computers from hurricane related damage. A computer is a very useful tool that should be part of any good disaster supply kit. Trust me when I say it's an important thing to have around. However, remember a computer is only a material possession. Like all material objects, they can be replaced. Human and animal life, however, cannot. Use good judgement when deciding whether or not to take your computer with you and while repairing it if it damaged.

Disclaimer: In no way is the author responsible for any actions you may take to save your computer from a hurricane or fix it after flooding. Any actions you choose regarding hurricanes and computers are taken at your own risk. For the sake of all, please use common sense during any natural disaster.

Daniel Foster is the owner of PC Fastlane, a great place to find computer help, interesting articles, tech news, and more. http://www.pcfastlane.com

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Refurbished Computer Guide - Save Money With Refurbished Computers!

Refurbished computer refers to remanufactured or renovated computers. Refurbished doesn't mean an old or a defected computer. Actually when a computer is sent back to the manufacturer due to small reason, like defected monitor or wrong model, afterwards the manufacturer tested it and gave approval for resale, is known as refurbished computer.

Refurbished computers are the best to do email, Internet surfing, or to play games. Major advantage of refurbished computer is that these are available at cheap rates and high processing power. If you want a computer with more memory, larger hard drive and faster processor, refurbished computer is the better option for you.

Remanufactured computers are the best for the people who are not sure about their needs. New companies, that have not sufficient money to buy new computers, can start their business with refurbished computers. You can also save more money with refurbished computers. Refurbished computer enables you to fulfill your dreams.

Companies, that are providing refurbished computers, offer heavy discount on these items. Category of refurbished computers includes desktop PCs, laptops, notebooks, barebones, whole computer systems, computer accessories and other computer related things. Renovated computers are fully assured and tested equipments. Manufacturers provide these computers in original packaging.

These are easily available in the market but you can also have a look online. Several manufacturers usually sell their products online. They offer heavy rate of discount for your benefit. You should check all the qualities of refurbished computer at the time of purchase. Before any type of payment, you should check whether the computer is satisfying your requirements or not.

About Author: The Author owns a website on Refurbished Computers [http://www.gmrefurbishedcomputers.com]. Website provides useful information to buy refurbished computer at cheap rates, also tells how to buy a refurbished computer. It offers some tips to buy refurbished laptop computers, used refurbished computers, refurbished computer supplies and refurbished computer suppliers’ info. You can also get information about Desktop Computers.

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Did Redhat Linux or Windows Xp Computed 2 Power 9,999,999?

If you ask any computer expert about the advantage of computer

use, two of their answers will be: The numeric computation capability, and the speed at which any task is done.

There many more advantages for using computers, but I will stress on the numeric computation aspect of those advantages.

I have done a test involving numeric computing to test the power of my Central Processing Unit of my computer. What I also did the test using Windows Xp and Redhat Linux, which are both installed on the same computer.

One of the reasons why I did the test, that I am about to explain, was my urge to sense the power of computer by looking at the screen.

Another reason was, I was getting fed up with Hearing about computer specs, without even knowing what they can do, or mean.

Here is an example:

Pentium II, 350 MHZ, Ram=256MB

Pentium III, 500 MHZ , Ram=512MB

and so on...

What is the power of the above specs?. How to approximate how many times the above P III is more powerful than the P II?.

Here is what I did:

I used my Pentium II, Ram=288MBs computer that has Windows XP and Linux installed on the same Hard disk in the same computer.

I tried to use the maximum numeric computational power of the computer by trying to get the result of multiplying the number '2" by itself 99 times and every time I got a result, I added another "9" until the computer can't handle the numbers anymore.

Using Windows Xp, I ran the calculator by typing "calc.exe" in the Run box. Then, I used the scientific calculator to handle the exponential calculation.

The most I was able to compute was 2 power 99,999. When I tried 2 power 999,999, Windows XP resulted in an error saying: "Invalid input for function"

Then, I rebooted my computer, and picked Redhat Linux to run on the same computer instead of Windows Xp. Once Linux prompted me to login, I used the mathematical utility Linux has. It is called by typing "bc" at the command line.

Once I ran "bc", I typed 2^99,999, the same maximum number I used in Windows Xp calculator . In about 2 seconds, i got the result.

Then, I tried a bigger number, 2^999,999 which Windows Xp scientific calculator could not handle. In about 5 seconds, I got the result on the screen. then, I added one more digit to compute 2^9,999,999 which is 2 multiplied by itself 10 Millions times minus one.

I waited about 35 minutes, then Linux BC application produced the result on the screen by showing few screens full of numbers from left to right, and

top to bottom.

Now you probably thinking, how does this computing relate to the performance of the CPU, or the whole computer as a whole.

Here is the answer:

What I discussed so far is using certain numbers to get the result of the formula 2 power 9,999,999. While running the calculation using "bc" in Linux. there another command to track the running processes in real time.

So, as you are running the calculations, you use another utility called "top" in RedHat Linux.

Once you run "top", the system shows you on the screen a list of applications, with all details about the resources consumed for each. The list is updated every few seconds, and each line shows the name of application.

So, to see the computation performance of "bc", you look up the line that says "bc". Then, you look on the same line that will show you information about "bc" like:

1-the time it is been running

2-The memory consumption in % of total ram

3-How much CPU power is being used for the application in %

and more variables.

You can watch the screen for the updated time the application

has been running for the current moment. Once the calculation is presented on the screen, you will know the calculation is done. You look at the time you just recorded right before the application ended.

The time the application took to calculate the formula: 2^9,999,999 and the memory used, in addition to the CPU power will give you an approximate idea about what your computer can do.

Also, you can use the above test to compare two computers and get and idea about the power.

Here is an example:

If computer P II, Ram=256Mbs took 30 minutes to compute 2^9,999,999; then, you ran the same test 2^9,999,999 with P III, Ram=512Mbs that took about 15 minutes, which is 1/2 the time it took before.

Then, you can approximate that the power of P III is about twice that of P II. Do, you get the idea?

In summary, there is an easy way for you to explore the power and performance in front of you, right on the screen. I was able to achieve this task by using Linux, and Windows XP that are installed on the same computer. I also found out that Linux can do better computation that Windows Xp.

Thanks,

George Chamoun created a Free guide that shows you step by step how to install two operating systems. To get the free guide, Click this link: Get the Free Guide: http://www.dualbootguide.com/join1.html

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When to Buy Guide - A Guide on When to Purchase a New Computer

A complete guide to buying a computer...

Note: This is guide targeted at beginners and intermediate computer users and buyers. These are my views and opinions only. Please use the information as reference only.

Many people may wonder when the best time to build a computer is. There are usually mixed answers depending on factors like, when you need the computer by and what you need the computer for.

I have decided to write a short guide for anyone who is planning on purchasing a computer this year.

Do you need a new computer:

Do you actually need a new computer? If you want a new computer because your current computer has problems and is filled with errors.etc, then chances are, you actually don't "need" a new computer. Re-installing windows usually fixes all performance issues and all errors you may have with your computer. If you have hardware problems, then chances are, it's a single part that is causing you grief and a replacement is usually the better option. Replacing faulty parts is a good way to save money if you don't actually "need" a new computer. If you think your current computer is lacking performance due to new software and games or your computer isn't compatible with software and games, then you should be considering a purchase. Always look in to why you actually need a new computer before you decide to buy.

Upgrading your current computer:

There is a rule I refer to when upgrading a computer. Never do a replacement upgrade where you pull out a part and replace it. Because then you are wasting money seeing you just pulled out a perfectly good piece of hardware and thrown it into storage. If you try and sell the part, then you probably won't get close to 50% of what you payed for it. So, don't do replacement upgrades. There is another form of upgrading which is fine and which I like to call "Adding Upgrade". This is where you add a piece of hardware without taking anything out. So, things like, adding RAM, Hard drives, Optical Drives, Add-on cards.etc, these are all fine. There is a time where you should never upgrade, this is when your computer is old and starting to lag behind in the latest applications. In this case, save your money on an upgrade and invest in a new computer.

What you need a new computer for:

When buying a computer, it is important to think about what you actually need the new computer for. Depending on what you use the computer for, depends on what your "primary" part will be. Your "Primary" part is the piece of hardware which will most effect performance in applications you are planing to use. For example, if you're a gamer, your graphics card will be the primary piece of hardware in your system, so it's smart to invest extra in to that. Where, if you want your new computer to act as a media centre for playing movies, captured video.etc then RAM will be your primary part followed by CPU. Large video files require a lot of RAM to be able to access different parts of the video faster. You also need a decent CPU seeing you need something which can make use of the RAM properly so it can decompress video at the rate the RAM can output data.

Where to buy:

Where to buy is the biggest decision in buying a computer. Also, depending on whether you will build yourself or get a retailer to build one for you. You should only build a computer if you can repair a computer. Seeing if you build yourself, you get no labour warranty. Although your parts will come with warranty, you need to diagnose the problem before you can get a replacement on the part. That rule then loops around to the other side, where you should buy from a system retailer as long as they offer labour warranty.

Another factor on where to buy is pricing. Some people look for the cheapest places where others look for the most reliable places or the ones with the best after sale service & support. If you're planning on building yourself, then you would want a cheap part retailer. Be careful though, seeing some cheap places are dodgy. I once spent 1 month waiting for parts only to receive the wrong graphics card which was also faulty. I finally had a working system 2 and a half months after I paid for the parts. If you don't want to build yourself, then price will be a factor, but what could be a bigger factor is after sale service & support. Many places will forget about you once you walk out the door leaving your cash on the counter. Where some places may offer you excellent after sale support and extra "bonus" services. Although bonus services are rare, if a place provides them, then they're usually the right choice. Bonus services include things like, free web space or a special website for clients only which offers free software and updates.

When to buy:

This factor falls right behind "where to buy" and just in front of "what to buy". Depending on what your computer will be used for, depends on what parts are most important. To make your computer hold up in the future, you need to future proof it. Future proofing is something I strongly believe in. So, if you were to consider purchasing a CPU, then make sure it has things like 64bit technology and make sure it has a dual-core CPU for when applications start to take advantage of dual-core processing.

So, when to buy can sometimes not be an option depending on how urgently you need your new computer. But if you have no urgency, then you should wait for the right time to buy. Below is a list of things to remember to select when the best time to buy is...

We will use Graphics Cards (GPU's) as reference...

* If the current line up of graphics cards have been around for a while, then wait till next gen arrives. That way your graphics card will have the latest technologies, best performance and better future proofing.

* If you're waiting on the next generation of graphics cards, then don't buy a next gen GPU as soon as it comes out seeing stock will be in short supply most likely so you will be paying top dollar. Instead, wait a few weeks after the initial release so you get more competitive pricing.

* If there is (for example) a new high-end Nvidia graphics card coming out and you want a high-end ATI graphics card for example, then wait till the Nvidia card comes out because then ATI will most likely be forced to drop the prices of there high-end card.

Other Info:

The same or similar applies for all parts. You'll find parts like hard drives move along at the slowest pace in terms of technology. But usually things like that move along fast in terms of price. So be aware of that.

There are computer parts which focus on luxury rather than performance. These things include Monitor Size and Speakers. Although these two things don't effect computer performance, they can effect computer experience. I usually consider things like these last seeing what good is a high-res screen if your graphics card can't support high-res video or games. you get the drift anyway.

Then, there are things like cases where although they don't directly effect performance (they sometimes can) or experience, that is what someone sees when they view your computer and your case can be important to show what you're personality is like. Cases also offer functionality for ease of use and layout. The one time where they can increase performance, is there cooling ability. If your case has excellent ventilation. Then you yourself can increase performance by overclocking or increase stability by just keeping all components cool.

Anyway, that wraps up the guide for now, hope you learnt something and found it useful. Remember it pays to do your market research when purchasing computers so you know what is already out and what's coming out.

Cheers!

Tom Wardrop - Owner of [http://www.fullvoltage.com.au]

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