Processor Technology Corporation was a personal computer company founded in April 1975, by Gary Ingram and Bob Marsh in Berkeley, California. Their first product was a 4K byte RAM board that was compatible with the MITS Altair 8800 computer but more reliable than the MITS board. They followed it up with a series of memory and I/O boards including a video display module. But their most famous product was a computer called the SOL-20.
Processor Technology Corporation and the SOL-20










