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MICROCOMPUTERS. -Olga Borysenko Nidhi Beley. Different types of computers. Super Computers Mainframes Mini Computers Microcomputers. What is a microcomputer. A Microcomputer is generally defined as computer based on a microprocessor.
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MICROCOMPUTERS -Olga Borysenko Nidhi Beley
Different types of computers • Super Computers • Mainframes • Mini Computers • Microcomputers
What is a microcomputer • A Microcomputer is generally defined as computer based on a microprocessor. • Microcomputers are single chip processors and are also known as PC’s (personal Computers). • In most modern computers the processor also has a short term storage (cache memory) and input/output control circuits on the same integrated circuit (chip).
Basic Components • Input • Processing • Storage • Output • Communication & Network • Other Hardware
History • Jan 1975: Altair 8800, the first microcomputer. • The worlds first commercial microprocessor was Intel4004 released on November 1971. • The first microcomputer application software was released in 1979: WordStar-for word processing, dBase- database mgt, VisiCalc- spreadsheets.
History cont. • In 1981, IBM entered microcomputer market. • IBM’s first microcomputer- IBM PC • After the launch of IBM PC, the term personal computer became generally used for a consumer friendly microcomputer. • 2nd generation of microcomputers (8 bit: early 1980’s) were often referred to as home computers.
Different types of early microcomputers • Altair 8800 • The HB • The Commodore PET • The Coleco ADAM • The Rainbow
More @ microcomputers • Microcomputers are the smallest and cheapest. • Microcomputers are reducing the popularity of Minicomputers and Mainframes. • Microcomputers are used in home appliances, vehicles, all sorts of equipments, transportation etc.