On June 16, 1983, Microsoft and ASCII Corporation announced the birth of the first truly international home computer standard – MSX. Backed by 14 major Japanese electronics companies, MSX aimed to achieve what no one had done before: create fully compatible computers across brands, much like VHS standardization in the VCR market.
MSX – The First Attempt at Computer Standardization
The Visionary: Kazuhiko Nishi
Kazuhiko Nishi, head of ASCII Corporation and vice-president of Microsoft Japan, saw the early 1980s market flooded with incompatible systems – Apple, Commodore, Atari, all making computers that couldn’t run each other’s software. Inspired by VHS, Nishi envisioned a unified hardware standard that would allow different manufacturers to build computers that all ran the same programs.
The foundation for the MSX standard was the Spectravideo SV-328, unveiled in June 1983, with a Z80A 3.6 MHz processor, 64 KB RAM, TMS9918 graphics chip, and AY-3-8910 sound chip. While the SV-328 wasn’t fully MSX-compatible, it served as the template for the standard.
Anecdote:
The meaning of “MSX” is still debated. Kazuhiko Nishi said it stood for “Machines with Software eXchangeability”, but also suggested “Microsoft Extended” or even “Matsushita-Sony X-machine”. In 1985, he joked it came from the MX missile. The truth? “It just sounded good.”
Spectravideo SV-328 prototype – by samdal (original site: samdal.com)
The First MSX Computer: Mitsubishi ML-8000
On October 21, 1983, Mitsubishi launched the ML-8000, the world’s first MSX computer. Priced at 59,800 yen, it featured 32 KB RAM, a color keyboard, and support for controlling Mitsubishi industrial robots (Move Master II).
Tailored for the Japanese market, it offered unique features like compatibility with Mitsubishi Diatone audio systems and an optional ML-10KB hex keyboard for data entry. It was the first proof that MSX could work in practice.
Technical specs of the ML-8000:
- CPU: Zilog Z80A (NEC D780C-1), 3.58 MHz
- RAM: 32 KB
- VRAM: 16 KB
- ROM: Contained MSX BASIC and BIOS
- Graphics: Texas Instruments TMS9918ANL
- Sound: AY-3-8910A PSG
Mitsubishi ML-8000 (msx.org)
A Global Alliance of Manufacturers
On June 27, 1983, Microsoft, ASCII, and 14 top Japanese electronics companies officially launched the MSX standard. Among them: Canon, Fujitsu, General, Hitachi, JVC, Kyocera, Matsushita (Panasonic), Mitsubishi, NEC, Pioneer, Sanyo, Sony, Toshiba, and Yamaha.
In Europe, Philips was the main supporter. It introduced the VG-8010, VG-8020, and later advanced MSX2 systems like the NMS 8250, which became the most popular MSX computers on the continent.
Trivia:
Even companies with no prior computer experience joined the MSX trend. Yamaha (famous for musical instruments) built MSX systems with integrated synthesizers, while JVC added advanced video features.
MSX BASIC – The Heart of the System
A key part of MSX’s success was MSX BASIC, an enhanced version of Microsoft BASIC 4.5 tailored for graphics, sound, and peripherals. Burned into ROM, it launched automatically on every MSX machine.
Key features of MSX BASIC:
- Graphics commands:
SCREEN,PSET,LINE,CIRCLE - Sprite support:
SPRITE,PUT SPRITE - Sound commands:
PLAY,SOUND - Joystick support:
STICK,STRIG
MSX also introduced MSX-DOS, a simplified CP/M-compatible OS that enabled running professional software.
Evolution of MSX
MSX2 (1985): A Graphics Revolution
MSX2 featured the Yamaha V9938 chip with 512×212 resolution in 16 colors from a 512-color palette, rivaling Atari ST and early Amigas.
MSX2+ (1988): The Final 8-bit Leap
Included the V9958 chip and 256×212 graphics in 19,268 colors, plus the Yamaha YM2413 (MSX-Music) FM chip with 9 channels.
MSX Turbo R (1989–1991): 16-bit Future
Panasonic’s Turbo R used the 16-bit ASCII R800 processor (7.16 MHz). The FS-A1ST and FS-A1GT were the final MSX models, produced exclusively in Japan.
MSX: Regional Triumphs and Global Missteps
Regional Successes:
- In Japan, MSX sold 7–9 million units.
- In Brazil, Gradiente sold hundreds of thousands of MSX systems (Expert, Expert Plus).
- In the Netherlands, Philips dominated with the VG-8020 and NMS 8250.
- Arab countries used Yamaha MSX machines for education.
- In Cuba and the Soviet Union, MSX was adopted for teaching IT.
Philips VG8020 By No machine-readable author provided. SanderK assumed (based on copyright claims). – No machine-readable source provided. Own work assumed (based on copyright claims)., Public Domain, https://commons.wikimedia.org/w/index.php?curid=569054
Failure in the USA:
Despite Microsoft’s backing, MSX flopped in the U.S., where the Commodore 64, Apple II, and IBM PC already reigned supreme.
Paradox:
While MSX was gaining popularity, Microsoft boasted that “MS” stood for “Microsoft.” But after 1986, when global dominance faded, the company distanced itself from the name.
MSX Legacy
Although MSX never became the global standard, it pioneered many innovations:
- First true cross-manufacturer compatibility
- Hardware abstraction layer (HAL) in home computing
- Modular expansion via cartridges
- Unified software + hardware ecosystem
MSX was the original platform for iconic games like Metal Gear and Metal Gear 2: Solid Snake by Hideo Kojima, with Konami and Hudson Soft developing many of their top titles for MSX.
MSX in Poland
MSX computers were virtually unknown in Poland, but starting in 1986, Central Scout Warehouses imported MSX-compatible Spectravideo SVI-738 units. These rare machines mostly ended up in educational institutions and the hands of a few dedicated enthusiasts.
