Exercise 2 :Computer generations

Computer generations
Fill in the blanks.

1st generation (1940-1956)
2nd generation (1956-1963)
3rd  generation (1964-1971)
4th generation (1971-present)
5th generation (present & beyond)

*For my 4B students, please pass up your exercise book on  Thursday (13th January).
HapPy LeArNinG:)

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