Cracking Open the IBM PC Jr.

Usual suspects

The chips on the floppy drive mirror the chips we saw on the controller from Texas Instruments, Motorola, and National Semiconductor.

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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