Computer Generation

Generation

Due the reason of speed size and cost of computer , dived in to some generation which are given below:-

Ist Generation

  Generation started about 1949

  • First generation computer processor valve type
  • processor made-up of with help of test Tube (glass)
  • Programming language was done in machine language
  • Computer were in very big size like on big room
  • Speed is too slow of  first generation computer
  • Due the reason of valve based processor which made-up of with help of test

Tube (glass) the processor became damage very easily and very soon .that’s why

this is generation fulfill fail

  • Very large space requirement
  • Limited programming capabilities
  • High power consumption
  • Slow operating  speed and restricted computing capacity

Computer name of 1st edvac, LEO, UNIVAC-1, IBM70, 650

eniac it was fist valve based computer designed by physics, jhon w mouchly.

Note:-

            Univac-1 was the world first commercially used mainframe computer of 1st gen.

IInd Generation

Generation started about 1959

  • 2nd generation computer processor transistor  type.
  • Programming language was very famous In this gen. like cobol, fortran etc
  • Computers were in size less than 1st generation
  • Speed is greater than 1st generation
  • programming capabilities
  • Low power consumption

Model                                  Size                             Application

IBM-1620                            Small                           Scientific

IBM-1401                            Medium                       Business

IBM-7094                            Large                           Sci. & Buss.

CDC-1604                            Large                           Scientific

CDC-3600                            Large                           Scientific

RCA-501                              Medium                       Business

UNIVAC-1108                     Large                           Sci. & Buss

IIIrd Generation

Generation started about 1969

  • 3nd generation computer processor IC (integrated circuit)   type, consisting of Regis tens and capacitor on a single chip were used.
  • Computers were in size less than 1st & 2nd generation.
  • Higher Speed , greater than 1st   & 2nd generation
  • Large storage capabilities and lower prices this computer called mini computer programming capabilities.
  • Low power consumption

Computer of 3rd generation IBM-360 series IBM-370, 1168 ICL-1900 Series Honey well -6000 series

IVth Generation

Generation started about 1980.very large scale integrated circuits having about 50000 transistors an a chip micro processor in this generation.

  • Development of microprocessor made it possible in this generation.
  • Computer was in very small size.
  • Higher Speed , greater than 1st , 2nd  & 3rd generation
  • Large storage capabilities and lower prices this computer called micro computer programming capabilities.
  • Low power consumption

Note:-

  1. alter was the first micro computer 
  2. Micro processor chips in 1971 Intel corporation of USA.

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