Cracking Open the IBM PC Jr.

Back to BASIC

These two IBM chips marked in yellow provide the PC Jr. with BASIC. BASIC is sort of the default operating system in the PC Jr.


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.