THE first generation computer (1946-1951)



 
These computer were developed during 1946-1951 A.D. The first generation computers used vacuum tubes for circuity and magnetic drum for memory
and were often enormous , taking up entire room . They were very expansive to operate and
in additional  to using great deal of electricity , generate a lot of heat , which was often cause
of malfunctions .The first generation computer replied on machine language to perform
operation , and they could only solve one problem at a  time  .Input was based on punched cards
and paper tape and output was displayed on printouts.


The main feature of  first generation computer are:

1.vacuum tube technology 
2.unreliable
3. support machine language only 
4.very costly
5.slow input/output device 
6.huge size
7.need A.C
8.non-protable
9.consume a lot of electricity


Some computer of this generation are: 
1. ENIAC
2.EDVAC
3 .

UNIVAC
4.IBM-701
5.IBM-650

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