Pessoal,
Dei uma pesquisada nos FAQs de cada plataforma...
Vejam que interessante...
As informações abaixo foram extraídas do FAQ Colecovision:
http://www.classicgaming.com/colecofaq/cvfaq.txt
ColecoVision Specs
CPU: Z-80A
Speed: 3.58 MHz
RAM: 8K
Resolution: 256 x 192
Video RAM: 16K (8x4116)
Video Display Processor: Texas Instruments TMS9928A
Sprites: 32
Colors: 16
Sound: Texas Instruments SN76489AN; 3 tone channels, 1 noise
Cartridge ROM: 8K/16K/24K/32K
ADAM Specs
Resolution: 256 x 192
CPU: Z-80A
Speed: 3.58 MHz
Video Speed: 10.7 MHz
RAM: 64K (128K optional)
Video RAM: 16K (8x4116)
ROM: 8K
Video Display Processor: Texas Instruments TMS9928A
Sprites: 32
Colors: 16
Sound: Texas Instruments SN76489AN; 3 tone channels, 1 noise
Cartridge ROM: 8K/16K/24K/32K
Disk Drives: 2 * 160K (opt)
Digital Data Drives: 2 * 256K
Modem: 300 Baud (opt)
Printer: 120 wpm Daisy Wheel, 16K buffer
Other: Serial/Parallel Port (opt), Auto Dialer (opt)
Agora a coisa fica legal... extraído do FAQ de MSX...
http://www.komkon.org/fms/MSX/
MSX is an old Z80-based family of home computers which appeared in 1982
as an attempt to establish a single standard in home computing similar to
VHS in video. They were popular in Asian (Korea, Japan) and South American
(Brazil, Chile) countries as well as in Europe (Netherlands, France,
Spain) and former Soviet Union, but they are virtually unknown in USA.
Although MSX standard quietly died to year 1988, the world got to see
MSX2, MSX2+ and TurboR extensions of it.
The MSX standard has been designed by a company called ASCII in
cooperation with Microsoft which provided a firmware version of its BASIC
for the machine. There is a widespread rumor that "MSX" stands for
"MicroSoft eXtended". The MSX machines were produced by such giants as
Sony, Yamaha, Panasonic, Toshiba, Daewoo, and Philips. The only MSX model
ever sold in USA appears to be an early SpectraVideo machine.
In spite of its sad history, MSX is a very nice computer, especially
useful for educational purposes which is clearly indicated by example of
the Soviet Union. Russian Ministry of Education bought hundreds of MSXes
(and later MSX2s) grouped into "computerized classroom systems" of 10-16
machines connected into a simple network. Entire generation of programmers
has grown up using these computers.
Hardware-wise, MSX represents a hybride of a videogame console and a
generic CP/M-80 machine. Its heart is a Z80 CPU working at 3.58MHz in the
base model. The clock frequency has been doubled in the TurboR. The video
subsystem is built around a TMS9918 or TMS9928 VDP chip also used in Texas
Instruments' TI-99/4 computers, ColecoVision, and Coleco Adam. In the
later MSX models this chip has been upgraded to V9938 (MSX2) and V9958
(MSX2+ and TurboR). The latest version of it is V9990. The audio system is
handled by AY-3-8910 chip by General Instruments, same as the one used in
Sinclair ZXSpectrum128 audio. AY-3-8910 provides 3 channels of synthetized
sound, noise generation, and two general purpose parallel IO ports which
are used for joysticks and some other things in the MSX design. Due to
their hardware structure, MSX machines were perfectly suitable for games
and there is a lot of good games either written or ported to them.
Conclusão:
Após ler os FAQs e outras fontes, penso que o MSX não foi baseado no
Colecovision ou no Adam, porém adotou soluções de hardware baseadas em
tecnologias já existentes para simplificação ou baixo custo.
Interessante como o padrão MSX não "pegou" nos EUA...
Lá já existiam Comodore Vic-20´s, 64´s, Apple´s e TRS-80´s entre outros
micros pessoais...
E na Inglaterra o MSX enfrentou uma boa concorrência com a linha Spectrum...
Recebida em Tue 29 Jan 2002 - 05:40:38 BRST