How do computers work?
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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.
Inside the outer case of a computer is mostly empty space. The heart of the computer is the CPU or Central Processing Unit, the microprocessor where all of the calculations made by the machine take place.
New data can be inputted from the keyboard or imported via the floppy disk drive, the CD or DVD drive, or for the Internet along a telephone line.
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Date Added: 13 December '11
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