Wednesday, October 21

The First Transistor Calculator – Social Future

On October 7, 1954, IBM researchers modified a valve-based Model 604 calculator to use transistors. The experiment did not manage to reduce the size of the machine (the size of a table), nor did it make it faster, but it did manage to reduce consumption so that it used only 5% of the energy required by the machine based on thermionic valves. Encouraged by this successful experiment, IBM introduced its first commercial transistor-based calculator 4 years later, the Model 608. IBM 604 Electronic Calculator – Source Visit our “On This Day” section for more Ephemeris of Technology.

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