Became popular with systems created in 1962 after Texas Instruments introduced the sιrie7400 of Integrated Circuits, which had a lot of logic functions through various ICs, and Sylvania Electronic Products has introduced a family equivalent. Texas Instruments became the industry pioneer, but the TTL are manufactured by Motorola, Signetics, SGS-Thomson, National Semiconductor and many other companhias.Os tormaram TTL is important because of its low cost and its convenience.
The Kenbak-1, was the first personal computer using TTL on their forming a CPU microprocessor, which did not exist in 1971.
According to the inventor the most expensive component of such computer age memory, the processor does not.
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