Hardware

Cracking Open the IBM PC Jr.

Door of expansion

The plastic door of the expansion pops right off to reveal several screws and another port of an additional expansion if you so wished.

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.