IBM PCjr(redirected from Pc jr)
(IBM PC Junior) A floppy disk-based home computer with an Intel 8088 CPU and a chiclet keyboard, released in November 1983. The PCjr could be expanded to have two floppy drives and 640 kilobytes of RAM using sidecars. Some even had a mouse and could run drawing programs with popup menus.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)