1970 ✦ THE GOLDEN AGE OF VIDEO GAMES ✦ 1999
Home Computers / FEATURE STORY

Inside MSX1: The Z80, TMS9918 and AY Sound Chip

Explain typical CPU, video and PSG components while noting model-to-model implementation differences.

THE GOLDEN AGE EDITORIAL2026-11-02
Inside MSX1: The Z80, TMS9918 and AY Sound Chip — retro gaming editorial illustration
Inside MSX1: The Z80, TMS9918 and AY Sound Chip Inside MSX1: The Z80, TMS9918 and AY Sound Chip

The early to mid-1980s marked a dynamic era for home computing, characterized by a fragmented market of diverse machines. In response, Microsoft and ASCII Corporation spearheaded the development of the MSX standard, first launched in 1983. MSX, often understood as "Machines with Software eXchangeability," aimed to unify the home computer market, particularly in Japan

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