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Historic Processor Technology Sol-20 Terminal Computer—the first fully assembled microcomputer with a built-in keyboard and television output—with the manufacturer's label applied to the rear: "Sol Terminal Computer, Model No. 20, Serial No. 214253, Power: 117 Volts 60Hz AC Only, Patents applied for, Processor Technology Corporation, Emeryville, California, USA." The computer features a blue metal case with built-in keyboard, wooden sides, and ports on the reverse including a cassette interface, parallel data interface, and serial communication interface. Untested and in very good to fine cosmetic condition, with a "Processor Technology Sol" label affixed to the top. Accompanied by a video cable.
The Sol-20 is historic as the first complete personal computer, introduced in 1976 by Processor Technology. It features an all-in-one design with a built-in keyboard and power supply, making it more user-friendly than earlier hobbyist systems. Based on the Intel 8080 processor, its design was originally suggested by Popular Electronics editor Les Solomon, and it appeared on the cover of the July 1976 issue of the magazine as a 'high-quality intelligent terminal.' The Sol-20 remained in production until 1979, by which time about 12,000 machines had been sold.
