HOW A COMPUTER WORKS

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The list

motherboard

cpu

drive

touch screens

software

ram rom

operating system

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THE DRIVE

Nearly every desktop computer and server in use today contains one or more hard-disk drives. Everymainframe and supercomputer is normally connected to hundreds of them. You can even find VCR-type devices and camcorders that use hard disks instead of tape. These billions of hard disks do one thing well -- they store changing digital information in a relatively permanent form. They give computers the ability to remember things when the power goes out
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THE RAM ROM

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THE MOTHERBOARD

If you've ever taken the case off of a computer, you've seen the one piece of equipment that ties everything together -- the motherboard. A motherboard allows all the parts of your computer to receive power and communicate with one another.

THE RAM ROM

ROM and RAM

Main store (or computer memory) is divided into Read Only Memory (ROM) and Random Access Memory (RAM).

ROM

ROM is memory that cannot be changed by a program or user. ROM retains its memory even after the computer is turned off. For example, ROM stores the instructions for the computer to start up when it is turned on again