Based on size and power, the computer can be divided into four categories
Super computer
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The supercomputer is the most powerful speedy and expensive. Incredible to speed up data processing or processing data from computers in the largest of these classrooms. A large amount of fine scientific research is used in supercomputer sources such as nuclear analysis and missile control aerospace research nuclear reactor etc.CRAY-I, CYBER-205 etc are example of supercomputer
mainframe computer
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Mainframe computer is a big computer with which many small computers can work together to help hundreds of people together. This type of computer has multiple processing parts. Such a computer is used for large organizations. Mainframe computers are used to analyze and evaluate the management of bank-insurance financial institutions and scientific operations.UNIVAC 1100/01,IBM-4341 etc are example of mainframe computer.
Mini Computer
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This computer, which is smaller than mainframe computers, can be used by many users simultaneously. Generally speaking, the use of computer is used in banking activities.PDB-8,IBMS/34,NCR S/9290,PDPII etc are example of minicomputer.
Micro Computer
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Generally speaking, the use of computer is used in banking activities. Usually a person can use a micro computer so called a personal computer. Such computers are available at relatively low prices. These types of computers are easily portable and easy to maintain, so users are widely appreciated. The use of micro-computers in private, business, official, government, entertainment activities has increased a lot.IBM PC,APPLE,Macintosh etc are example of microcomputer.
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