|
Manufacturer |
Various MSX licensees, mostly Japanese, including Sony, Sanyo, Toshiba, JVC, Goldstar, Panasonic, Canon, Philips, Spectravideo |
Model |
Various, including HB-75 Hit Bit, MPC 100, HX10 (illustrated above), HC-7GB, FC200, CF2700, V-20, VG-8000, SVI-738 in order from the manufacturers listed above |
Date Launched |
May 1984 in the UK A few appeared in late 1983 in Japan. |
Price |
Around £280 to £300 |
Microprocessor type |
Zilog Z80A or equivalent @ 3.579 MHz |
ROM size |
32 kilobytes |
Standard RAM |
Minimum 8 kilobytes to comply with MSX specification. Most came with 64 KB. |
Maximum RAM |
1024 kilobytes using bank switching |
Keyboard type |
At least 70 keys, including 5 function keys and separate cursor keys, of typewriter quality. |
Supplied language |
Microsoft extended BASIC |
Text resolution |
40 x 24 characters |
Graphics resolution |
256 x 192 pixels |
Colours available |
16 |
Sound |
3 channels |
Cassette load speed |
1200 or 2400 baud |
Dimensions (mm) Weight (grams) |
390 x 250 x 65 (Sony HB-75) Not known |
Special features |
32 graphics sprites Ran an operating system called MSX DOS 1 which was very similar to MSDOS used on IBM compatibles. |
Good points |
Included a joystick and cartridge port. In theory software written to the MSX standard would run on any MSX machine from any manufacturer. |
Bad points |
The specification was comparable to other home computers of the time but not exceptional. The MSX range was relatively expensive compared to the likes of the Commodore 64, Atari 600, Oric Atmos and Sinclair Spectrum, all costing under £200. |
How successful? |
The makers of MSX machines predicted they would gain a third of the UK market in 1985 but in practice only modest numbers were sold. The MSX standard was more popular in Japan and over the next few years improved versions known as MSX2, MSX2+ and MSX2 Turbo R appeared. |
Comments |
One of the weaknesses of the low-cost end of the home computer market in the early 1980s was that computers from different manufacturers, and often different machines from the same manufacturer, were incompatible with each other. This meant a program written for one computer would not run on another without substantial modifications, even if the two machines used the same microprocessor and had similar graphics and sound abilities. This increased the cost of writing software and limited the range available on any one machine.
MSX was intended to solve the problem by defining a standard specification for hardware and a standard operating system. Various manufacturers could build machines to this specification and they would all be able to run the same programs. MSX was developed by Kazuhiko Nishi of the Japanese company ASCII, in collaboration with Microsoft, and was expected to sweep the home computer market.
Software compatibility was a sound idea in theory but in reality there were problems:
- Computers like the Commodore 64 and Sinclair Spectrum had already sold a million or more and had created their own de-facto standards.
- The MSX hardware specification was adequate but not outstanding and more advanced designs soon appeared. Standardisation was seen as likely to hinder progress, as some people think happened with the IBM PC/Windows standard.
- The fact that the hardware was standardised made it difficult for the numerous manufacturers to distinguish their products. To provide a selling point they added extra hardware or firmware, such as control of a laserdisc player in Panasonic's model, improved audio in Yamaha's, a lightpen in Sanyo's, a built-in database program in Sony's. Of course any software which made use of these extra features would only run on that one model of MSX, and the advantage of the common standard was lost
Some of the MSX computers on sale in 1984. Top row Hitachi, Teleton, Sanyo. Middle row Toshiba, Canon, Mitsubishi. Bottom Sony. |