IBM Model 4860 PCjr personal computer, c 1983.
© Science Museum / Science & Society Picture Library
IBM introduced the first personal computer, the PC, in 1981. This machine, the PCjr was the company's attempt at producing an affordable version aimed at the ordinary consumer. Unfortunately the PCjr was not a succes. It was more expensive than the Apple II and the Commodore 64, its rivals in the home computer market, and was somewhat limited compared to the PC. As a result sales were poor, and IBM stopped producing the PCjr in 1985.