The Victor 3900 is the first electronic calculator to have been... - dofaq.co
victor 3900

The Victor 3900 is the first electronic calculator to have been...

wikipedia - 24 Nov 2021
The Victor 3900 is the first electronic calculator to have been built entirely of integrated circuits (ICs).[1][2] For its era, the 3900 is extremely advanced; it has a 4-inch (100 mm) cathode ray tube screen to produce a 5-line display, has separate memory for storing three intermediate results, supports numerical rounding, and is still "smaller than a typewriter".[3]

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