Cracking Open the IBM PC Jr.


The floppy controller has chips from all over the world. Some of the manufacturers represented in this chip layout include 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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