Híradástechnikai Szövetkezetet

Hungary's Híradástechnika, a small electronics manufacturer found in 1951 produced several calculators that were relabelled Western models.
The pocket computer is a Sharp machine. The five programmable models in their lineup came from several different manufacturers:
Commodore, National Semiconductor, and Texas Instruments; but perhaps the most surprising of all is an OEM version of the first Soviet programmable.

Source : R/S Programmable calculators

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