GENERATIONS OF COMPUTER:

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                          Generations of computer video



      Generations of computer:

                                                 The development of electronic computer can be divided into generations depending upon the technologies used. Different generations of computers are as follows:

. First generations                            (Vacuum tube)                                     1946-1956

. Second generations                       (Transistor)                                           1958-1963

. Third generations                         (Integrated Circuits)                               1964-1970

. Fourth generations                      (Microprocessor)                                    1971-Present

. Fifth generations                        (Artificial intelligence)                          Present and Future


       First generations computer (1946-1957):

                                                                       The First generations computers used vacuum tubes . A vacuum tube was expensive. It produced much heat that caused the computer breakdown. Two examples of first generations computer are ENIVAC and UNIVAC-I etc.


                                                                    Vacuum Tube

 

  Advantages:

                      .  Vacuum tube made possible to make electronic digital computer.


 Disadvantages:

                         . These computers were very large in size.

                         . They were not portal.

                         . They were not very reliable.

                        . They were more costly.

                          . They were quite slow in speed.

                         . They consumed a lot of power.

                         . They were different to maintain. 

                       . They used punch cards for input.

                      . They used magnetic drums that provided less storage.

                     . They used machine language only.



                 Second generations computer (1958-1963)

      

                                                             coming soon........









         





                                                                     

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