Software Gems: The Computer History Museum Historical Source Code Series The roots of the modern personal computer What was your first computer? Clockwise from top: Radio Shack TRS-80, Apple II, and Commodore Pet. Depending on your age, your first computer might have been an Apple II, a Radio Shack TRS-80, an IBM PC, an Apple Macintosh, or another of the early personal computers. If you missed these early machines the first time around, perhaps you have seen them in the Personal Computer section...