The first generation computers were in use between 1940 and 1956. Scientists used vacuum tubes as processors in them. They were so big that they occupied an entire room.
some features of the first generation are given below-
- Their speed was quite low and power (electricity) consumption was very high.
- Inputs in such computers were in the form of punched cards and paper tapes.
- Their programming capacity was very low.
- They could not store much data.
- They were huge in size and very expensive.
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