The world's first computer was developed by the military research units of the army.
United States in 1946, or approximately 66 years ago, with a length of 80 feet, weigh up to 30 tons of vacuum tube tube
use the 18000.The computer is divided into 4 categories
1. Super computers (Supercomputers) is a large computer with high speed. Maximum processing units Maximum storage unit. Used for military units and agencies, various research and weather forecasting.
2. mainframe computer (Mainframe computers) is an effective computer support down from the super computer. Use the organizational unit or a large organization, such as airlines, insurance companies, banks, universities, etc.
3. Mini computer (Mini Computers) is a small computer and a secondary performance came from the mainframe. Introduced in mid-sized companies. Used in the accounting system, or perhaps to use in conjunction with the mainframe, 4
. Microcomputer (Micro computers) is a small computer or personal computer PC (Personal Computers) as PC desktop computer or a portable moving.
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