How do computers work?
A computer is a device for processing information very rapidly and accurately. It processes words, pictures, sounds and numbers, and some computers can make billions of calculations per second. Most computers are digital, which means that they convert all the data, or information, entering the computer into the digits 0 or 1.
The heart of a computer is a microprocessor, which contains millions of tiny electronic devices on a silicon chip. Other chips form the computer’s memory, where information is stored until needed. Computers vary from small hand-held devices to desktop computers. Large computers used in industry and for military purposes are called mainframe computers.
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