Wednesday, February 25, 2009

Computers can be generally classified by size and power as follows:

Personal computer: A small, single-user computer based on a microprocessor. In addition to the microprocessor, a personal computer has a keyboard for entering data, a monitor for displaying information, and a storage device for saving data. 
Workstation: A powerful, single-user computer. A workstation is like a personal computer, but it has a more powerful microprocessor and a higher-quality monitor. 
Minicomputer: A multi-user computer capable of supporting from 10 to hundreds of users simultaneously. 
Mainframe: A powerful multi-user computer capable of supporting many hundreds or thousands of users simultaneously. 
Supercomputer: An extremely fast computer that can perform hundreds of millions of instructions per second.


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