Transistor Computer - The First Commercial Fully Transistorized Large-scale Computer

The First Commercial Fully Transistorized Large-scale Computer

The Philco Transac models S-1000 scientific computer and S-2000 electronic data processing computer, were the first commercially produced large-scale all transistor computers, which were introduced in 1957. The Philco computer name "Transac" stands for Transistor-Automatic-Computer. Both of these Philco computer models, used the surface-barrier transistor in its circuitry designs, which was the world's first high-frequency transistor that was suitable for high-speed computers. The surface-barrier transistor was developed by Philco in 1953.

In Italy, Olivetti's first commercial fully transistorized computer was the Olivetti Elea 9003, being sold from 1959.

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