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Many computer users adopt the ‘it will never happen to me’ policy, but there are a number of computer viruses out there just waiting to infect and destroy the information contained on their hard-drive. This is why companies invented anti-virus software, which is a program that automatically helps to detect the presence of viruses on a computer or in a file before it is opened.

Anyone who spends a considerable amount of time surfing the internet, visiting unfamiliar websites or downloading photographs is at a higher risk for computer viruses than those who do not. Computer viruses are typically attached to word processing documents, computer programs and images which, if downloaded, may instantly affect the computer’s performance.

If a computer virus infects a computer, the owner may immediately lose everything in their computer and may be forced to use the factory restore disk. This CD, which is accompanied by most new computers, will restore the computer to it’s original factory settings.

Anti-virus software is quite affordable considering it’s wealth of use. Without it, computer users are at constant risk for computer viruses. Anti-virus software can generally be found at any computer manufacturer’s website, retail store’s electronic department or online at many retailers selling computers.

Anyone who suspects that their computer may be infected with a virus should refrain from sending any e-mail messages or uploading photos to family or friends. Otherwise, the virus may spread to infect their computers as well.

Anti-virus software is available most commonly on a CD-Rom, but may also be downloaded from some manufacturers. By double clicking on the software, the anti-virus program will begin to perform a scan of your entire computer. As it progresses, it will give you an update on any potential located viruses or files that may be of concern. In addition, some anti-virus software will allow users to scan a single file before opening it. For example, if a computer user were to download an image but wanted to run a virus scan on it prior to opening the file, he/she could click on the anti-virus software and direct it toward the file in question. The anti-virus program would scan the file for potential viruses and will post the results immediately on the computer screen. This will allow the computer user to know which files are safe and which are not.

In today’s world, anti-virus software is to computers as Tylenol is to headaches. It’s both a preventative approach and a cure for certain ailments affecting a computer. If a user does not have anti-virus software pre-installed into their computer, it is recommended that they purchase a program immediately before logging on to the internet.

One of the most important developments for the personal computer revolution was the invention of the semiconductor. Or the transistor in 1949. The performance was conducted by engineers at Bell Labs. The transistor was nothing more than a switch to solid state electronics have replaced vacuum tubes much more important day. The transistor consumes much less power in the implementation of the exact spot as the most, the tubes hot day. Such a computer system built with transistors would be smaller, consume less energy and be more effective. And to boot since transistors did not like a tube or electric light bulb, much more reliable.

Transistors led to a trend toward miniaturization, which led all the way to today’s small portable laptop laptops / that can run on batteries. It is difficult to imagine that replacing a laptop today, which would be a tall building with computers that are consumed by the enormous amounts of electricity have been packed.

In 1959, Texas Instruments engineers figured out how to make more than one transistor on the same basis and the connection of these transistors without wires. The next step is born – the integrated circuit. The first integrated circuit composed of only six transistors. Current computers have in the order of 100 million transistor equivalents.

In 1969, Intel introduced the chip 1 k of memory. This was bigger than the product at the time. Through coordination of Intel computer with a Japanese manufacturer called Busicomp the next step was taken, where a generic multi-chip was developed. What made this gesture was important that no one could chip a number of tasks to do. Previously, each chip had a goal that has now burned an inch chip has a number of different functions that could be done. A single integrated circuit was almost a computing device. The followers of this multipurpose integrated circuit or “CPU” was what was on the basis of our generation and the concept of the personal computer /

were developed in 1973, some of these kits computer for the first integrated Intel 8080. In the hands of the amateur, these kits were put together, and were more than flashing lights. However, the momentum was. Many of these early computer enthusiasts went to become giants of the industry. With Intel introducing a more powerful microprocessor chip in the computer industry was on its way.

The first was a pioneering MITS kit company that introduced the kit Altair computer. The Altair inspired to write more business, programs for these first computers. Was among the early innovators and software manufacturers in this area from Microsoft with its first version of “Basic”.

Now things really started moving. IBM introduced the first “personal computer” in 1975. The Model 1500 was also compared to dollar stores today piddly computer and costs only $ 9,000.

In 1976, according to a recent California-based Apple Computer introduced the Apple I computer for $ 695. The original Apple 1 computer was screwed on a motherboard in a piece of plywood. A case and power are not even included, the buyer was also $ 695 for the supply and manufacture.

The Apple I in 1977 followed by the Apple II. The Apple II because of its enormous success in setting standards for almost every computer mic to follow, including the IBM PC.

The stage was not planned for the publication of the next big step in the evolution of the personal computer. The large and powerful computer IBM monolith – a very profitable business and lucrative was from a small upstart, the product began from a very primitive home seems to have screwed a piece of plywood type of product .. embarrassing that you have your laptop and your personal computer – PC itself to me as basic human and weaknesses.