Answer:
- 1940 – 1956: First Generation – Vacuum Tubes. These early computers used vacuum tubes as circuitry and magnetic drums for memory. ...
- 1956 – 1963: Second Generation – Transistors. ...
- 1964 – 1971: Third Generation – Integrated Circuits. ...
- 1972 – 2010: Fourth Generation – Microprocessors
Explanation:
there are 4 generations ok
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