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The IBM PCjr is a personal computer introduced in 1983 and sold through 1985. It had some nice features that other computers did not have at the time, but it was not compatible enough with the rest of the IBM PC family to be successful as a pure PC clone, and initially it was too expensive to compete against "home" machines such as the Apple ][ and the Commodore 64. As a result, the IBM PCjr did not sell well and it is considered to be one of the bigger flops in the industry.

I still like mine though. These web pages are an attempt to preserve the history and technical information of the IBM PCjr.

If you have questions or comments, please email me at mbbrutman at gmail.com. Please, no spam or unreasonable requests. I am interested in hearing your stories about the PCjr and meeting other owners of these fascinating machines.

Table of Contents

History        Pictures        Modifications and Hacks Overview
Pictures 2: Covers Off!
Upgrading a printer sidecar to bidirectional
Pictures 3: Magazine Ads
Changing a printer sidecar to be LPT2
Software Downloads
Pictures 4: Oddities
Adding the Dallas 1216E Clock chip
The PCjr Press Kit
PCjr Bus to ISA Bus Adapter Pinout
Keyboard Differences Chart

PCjr Combocard
Keyboard Handling (Advanced)
Options and Accessories

Tips and Tricks
PC Compact Printer
jrIDE IDE and memory sidecar
Legacy Tech Expansion Chassis

Resources and Links

Cartridge and ROM Dumping
The PCjr Web Server (new!)

 PCjr Web Forum! 

Related Pages

Created in October 2000, Last updated November 23rd, 2016
(C)opyright Michael B. Brutman, mbbrutman at gmail.com