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generation of computer

 five types of computer generation

mostly we have five types of computer generation. meaning of generation if defined that in daily life computer is never look that typed. when computer started first and second generation is mostly analog computer. third , fourth and five generation computer is mostly the form of binary language.

generation of computer 

  1.  first generation of computer (vacuum tube) 1940-1956
  2.  second generation of computer (transistors)  1956-1963
  3.  third generation of computer (integrated circuit) 1964-1971
  4.  fourth generation of computer (microprocessor)  1971-present 
  5.  five generation of computer (artificial intelligence)  present and beyond

  • first generation computers: vacuum tubes (1940-1956)

the first generation of computer is mostly made by a vacuum tubes. vacuum tubes is like a electric bulb elements. its work with the help of heat energy. these type of computer is very expensive and huge. its fit on a one big room. these types of computer invented by the ENIAC and UNIVAC.
these vacuum tubes were used for calculation as well as storage control. the first generation of computers was the electronic numbrical integration and computer (ENIAC). built by J.presper.
  • second generation computers: transistors (1956-1964)

solid state components (transistors and diodes) and magnetic core storage formed the basis for the second generation of computer. the second generation of computer mostly made by the small transistors. transistors stored electricity. transistor was replaced the vacuum tubes . its very useful then the vacuum tubes. it is stored huge amount of data. its very less expensive then the vacuum tubes. 

example:- PDP-8, IBM-1400 series, IBM 1620, IBM 7090.
  • third generation computers: Integrated Circuits (1964-1971)
third generation of computer were introduced in 1964. transistors replaced by the semiconductors. it increased the speed of computer and decrease the cost per bits. In this typed of computers high level language has been developed.

example:- NCR 395, B6500, IBM 360, 370
  • fourth  generation computers: microprocessors (1971-present)

fourth generation of computers are made by the use of microprocessors. fourth generation computer started around 1971 by using the large scale integration (LSI). LSI element built on a single silicon chips called microprocessor. a microprocessor contains all the circuits required to perform arithmetic and logic and controls function. 

example:- Apple II, Alter 8800.
  • fifth generation computers: artificial intelligence (present and beyond)

fifth generation computer are based on artificial intelligence . fifth generation computers, based on artificial intelligence, are still in development though.
  there are some application , such as voice recognition , that are being used today artificial intelligence is the branch of computer science concerned with making computer behave like a human and allow the computer to take its own decision .




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