Generations of Computer

First generation computers (1945 — 1955)


  1. It was very bulky
  2. It was costly
  3. It uses vacuum tubes as the basis for budding the logic part of computer.
  4. Its performance was very low.
  5. The circuit consists of wires and thermionic valves,
  6. Magnetic drum is used for primary storage of data.
  7. It uses machine language.
    Examples of First generation are: (a) EDSAC (b) EDVAC (c) ACE (d) UNIVAC (e) IBM 700 series.

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