The TI TMS9900 is a fascinating microprocessor. It was the first 16-bit microprocessor on the market, it has a unique architecture that makes it well suited to multitasking, and it was on IBM's shortlist to power the PC. Today we are looking at this strange chip, and the TI minicomputers that predated it's design. Along the way we will construct a theoretical TI-powered PC, and see how home computing could have changed if IBM took a slightly different path.

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