Cracking Open the IBM PC Jr.

Infrared sensor

The infrared sensor for the wireless keyboard is not very big, breaking the trend set by the floppy drive.

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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