" In short, the fan is responsible for keeping a computer's motor cool and this motor is what keeps the computer's hard drive and peripherals functioning the way you need them to, which translates to "fast." A dirty fan doesn't rotate fast enough to keep that motor cool and a completely clogged fan just stops rotating altogether. Batch files are small text-based documents that contain a bunch of these commands on their own lines. When executed, they would process each command without the user having to type each and every one of them. When Windows was developed, the need for typing commands was essentially eradicated thanks to the introduction of the point-and-click (mouse) interface. The network card is similar to the old modems we used in the past to connect to the Internet, however in a home network, it's used to communicate with every computer that's connected to it. You'll want to first, select the computers that will connect to each other and then install the network cards inside each of them. Computer Security In Today's Society, Protecting Your Computer Is A Requirement Advances in computer technology is a double-edged sword. On one hand, it affords us quick and easy access to numerous conveniences such as bank statements, favorite shopping centers, school and health records, and more. On the other hand, it can also grant the same access to those who aren't supposed to get it. There are alternatives to selling a computer and this article is going to introduce a few of them. 1. Give it to the kids. This is of course, assuming the kids are too young to whine about not having enough SDRAM or less than a 160GB hard drive. Today's "older" computers are perfectly capable of accommodating the needs of young PC users, and they're excellent machines for playing educational CDs, small multimedia files, or games downloaded from the Internet. Keyboard and Mouse Options. The keyboard and mouse controls give users the option of speeding up or slowing down the movements of both of these peripherals. For those entering the United States from a foreign country, users will appreciate how Windows grants use of keyboard layouts native to their original language.