1990
In 1990, the home computer market in the United States of America was dominated by IBM PC compatibles. These had an 84% market share, followed by Commodore 64, Apple Macintosh, Atari ST, and Commodore Amiga.
The Nintendo Entertainment System still dominated the video game console market in most regions, but other 8-bit consoles were popular in other regions. The Sega Master System continued to dominate the market in Brazil.
The 16-bit console market was expanded. The NEC PC Engine, which debuted in Japan in 1987 and in France, in the United Kingdom, and in North America as the TurboGrafx-16 in 1989, was released in Spain. Likewise, the Sega Mega Drive, which was released in 1988 in Japan and in North America as Sega Genesis in 1989, saw a worldwide expansion in 1990 with releases in Brazil, Europe, Oceania, and South Korea. Additionally, Nintendo released the Super Famicom in 1990 in Japan.
Arcade games remained popular. To regulate the market, a law in Japan was passed that required that all arcade cabinets had to be shipped with a working game so that purchasers could plug it in and immediately test whether the cabinet was functional.
Thus, companies created simple games with cheap hardware that could be included and then disposed of by the purchaser. Sega created Dottori-kun as the game that was included with its Astro City arcade candy cabinets.
The following computer-related events occurred in 1990:
- Application software released in 1990
- Arcade games released in 1990
- Arcade hardware released in 1990
- Companies and organizations closed in 1990
- Companies and organizations formed in 1990
- Computers and consoles released in 1990
- Computer and video game conventions in 1990
- Computer and video game peripherals released in 1990
- Operating systems released in 1990
- Video games released in 1990
