The Kenbak-1 was the world’s first personal computer. John Blakenbaker developed it at the Kenbak Corporation in 1970. It was before the first microprocessor, so it did not have a single CPU. The first units were sold in 1971, but only 50 machines were built. It sold for $750 US and there are only 14 of them known to exist today. Kenbak went under in 1973 and was taken over by CTI Education Products, which renamed the system the 5050. The system was relatively slow since it used a serial architecture and was programmed in machine code.
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