IBM PCjr platform
A budget PC by IBM, scaled down & added a cartridge bus. Games on cart or disk. Designed to be 'home friendly' & 'game friendly'. Quickly discontinued
The first video game about IBM PCjr platform was released in 1983.
Although it was quickly discontinued, the enhanced Tandy 1000 clone was created at the same time. The T1k was successful long after the PCjr was gone. Cartridge games can only be played on the PCjr, the T1k lacks the cartridge bus. PCjrs can be modded to full T1k compatibility or through a Gamemaster card.