computer overview

Computers are not really as complicated as they initially seem. you just have to learn the basic functions of the various parts, and then you can separate them into three categories:
Input: Any device that lets you talk to the computer (such as a mouse or keyboard).
Process/Storage: Main functions of a computer, which happen inside the computer case. Not surprisingly, the Central Processing Unit (CPU) does all the processing; the storage function is handled by any number of drives (hard disk, floppy, Zip, tape-backup, CD/DVD-Rom) or disks (compact discs or floppy diskettes).
Output: Any device that lets the computer talk to you (such as a monitor or speakers). if you're having trouble understanding this input/output stuff, think of you home television (TV) set. Televisions and computer are similar in several ways: The remote control is comparable to the mouse (or any other input device such as a mouse or joystick). the cable box (while not nearly as powerful as a computer is similar to a computer in that it can process information (such as deciphering which channel you want to watch) and, if programmable, store information(such as when to show the film using a built-in timer).The displays the channel much like a monitor displays.