First generation computers are characterised by
  • 1Vacuum tubes and magnetic drum
  • 2Minicomputers
  • 3Magnetic tape and transistors
  • 4All of the above
Answer:- 1
Explanation:-

Solution:
A vacuum tube computer, now termed a first-generation computer, is a computer which uses .... Magnetic drum memory was invented in 1932 by Gustav Tauschek in Austria.

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