The GI SBA-1 (General Instrument Microelectronics Sequential Boolean Analyzer-1) is a 1-bit architecture microprocessor developed by General Instrument's Microelectronics division. The chip featured 24 basic instructions, 16-level stack, and storage. This is an identical version of the GI SBA without the on-chip ROM. ROM data lines instead were brought out allowing external RAM or ROM to be hooked up.

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