GENERATIONS OF COMPUTER
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- 2. Generation in computer terminology is a change in technology a computer is/was being used. Initially, the generation term was used to distinguish between varying hardware technologies. But nowadays, generation includes both hardware and software, which together make up an entire computer system. 2 5/21/2017
- 3. Each of the five generations of computers is characterized by a major technological development that fundamentally changed the way computers operate. Most major developments resulted in increasingly smaller, cheaper and more powerful and efficient computing devices. 3 5/21/2017
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- 5. COMPUTER - FIRST GENERATION The period of first generation was 1946-1959. The computers of first generation used vacuum tubes as the basic components for memory and circuitry for CPU (Central Processing Unit). The main features of first generation are: Vacuum tube technology Unreliable Supported machine language only Very costly Generated lot of heat Slow input and output devices 5 5/21/2017
- 6. COMPUTER - FIRST GENERATION 6 5/21/2017
- 7. COMPUTER - SECOND GENERATION The period of second generation was 1959-1965. In this generation transistors were used that were cheaper, consumed less power, more compact in size, more reliable and faster than the first generation machines made of vacuum tubes. Some computers of this generation were: IBM 1620 IBM 7094 CDC 1604 CDC 3600 UNIVAC 1108 7 5/21/2017
- 8. COMPUTER - SECOND GENERATION 8 5/21/2017
- 9. COMPUTER - THIRD GENERATION The period of third generation was 1965-1971. The computers of third generation used integrated circuits (IC's) in place of transistors. Some computers of this generation were: IBM-360 series Honeywell-6000 series PDP(Personal Data Processor) IBM-370/168 TDC-316 9 5/21/2017
- 10. COMPUTER - FOURTH GENERATION The period of fourth generation was 1971-1980. The computers of fourth generation used Very Large Scale Integrated (VLSI) circuits. Some computers of this generation were: DEC 10 STAR 1000 PDP 11 CRAY-1(Super Computer) CRAY-X-MP(Super Computer) 10 5/21/2017
- 11. COMPUTER - FIFTH GENERATION The period of fifth generation is 1980-till date. In the fifth generation, the VLSI technology became ULSI (Ultra Large Scale Integration) technology, resulting in the production of microprocessor chips having ten million electronic components. Some computer types of this generation are: Desktop Laptop NoteBook UltraBook ChromeBook 11 5/21/2017
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