generations of cmputer
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The document provides an overview of computers including their history and generations. It defines a computer as a calculating device that can perform calculations accurately at high speeds. It discusses Charles Babbage as the father of computers who designed the difference engine. There are then five generations of computers described from the first generation using vacuum tubes to the current fifth generation which are more reliable, portable, powerful and feature wireless connectivity and parallel processing.
generations of cmputer
- 1. Submitted to – Submitted by - Abhishek Chaudhary Roll no – 75 Hapur section B.T.C COURSE
- 2. what is Computer ? • The word computer comes from the word “compute” which means to calculate. • People usually consider computer as calculating device that can perform calculation accurately at a very high speed. • But this trend is on more been today's modern era computer as it provide multiple function other then calculation. • Computer are used for data processing & problem solving related to scientific as well as research activities.
- 3. Charles Babbage Father OF Computer • A British Mathematics professor. • He was born in England in 1792 as the son of a rich banker from Devon. • He was inspired by Napier's logarithm tables. • He began to design a "difference engine" in 1821 which was a very large and complicated machine intended for doing logarithmic calculations automatically
- 5. There are 5 Generations of computers:- 1. First Generation(1946-1955) 2. Second Generation(1956-1965) 3. Third Generation(1966-1975) 4. Fourth Generation(1976-1985)
- 6. First Generation of Computer (1946-1955) • Vacuum Tubes • Big and clumsy • Magnetic Drum • 4,000 bits • High electricity consumption • Hard Wire Programs in computers
- 7. Second Generation Computer (1956-1965) • Transistors • Smaller • Lower Electricity consumption • Core memory • Magnetic Cores • 32,000 bits • Punch Cards
- 8. Third Generation Computer (1966- 1975) • Silicon Chips • HLL Appeared • Cores, IC’s • 128,000 bits • Keyboard Entry
- 9. Fourth generation computer (1976- 1985) • IC smaller & faster • IBM & APPLE developed • Potable Computers • DATA communication developed
- 10. Fifth generation computer (1986- onward) • More reliable • Works faster • Easily portable • Different sizes • Different features • Different affordable prices • Extra high processing speed • Parallel processing • WIRELESS!!!
- 11. THANK YOU ABHISHEK CHAUDHARY BTC 2015-17 BATCH HAPUR - SECTION DIET HAPUR