For a young geek in the 80s, the it computer was the IBM PCjr. On paper, it was a truly remarkable leap in technology. With a wireless keyboard, light pen, and optical mouse it was an impressive ...

An IBM PCjr (MS-DOS 5.0, 640 KB RAM) has it's serial port connected to an RS-232 to USB adapter. Since the serial port uses a non-standard 2x8 pin Berg connector (everything on a PCjr is non-standard) ...

What was it like to code a simple game in the dawn of the personal computer age? This is an exploration of game programming for an IBM PCjr using 8088 assembly.

Every industry has at least one. Automobiles had the Edsel. PC Hardware had the IBM PCJr and the Microchannel bus. In the software world, there’s Bob. If you don’t remember him, Bob was ...