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Hardware

Cracking Open the IBM PC Jr.

Jump the connection

This is interesting - for some reason IBM used an external wire soldered between contact points. There are actually two here.

About

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.