Cracking open the Osborne 1: The original portable computer

The other end

The CPU can be found on this end of the board. The Osborne 1 used the Zilog Z80 processor running at 4MHz. Or at least a processor based on the Z80.

About Mark Kaelin

Mark W. Kaelin has been writing and editing stories about the IT industry, gadgets, finance, accounting, and tech-life for more than 25 years. Most recently, he has been a regular contributor to BreakingModern.com, aNewDomain.net, and TechRepublic.

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