The history of MSX computers [video]
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The first MSX was sold in 1983. It couldn't realistically have been made much earlier. You must take into account that the 80s had an explosion of technology. As soon as something hit the market, it was already superseded by something better.
Imagine if that had failed and we'd maybe be using the descendants of the original MSX-line.
All editions of the (Dutch language) MSX Magazine are online at: https://www.msxcomputermagazine.nl/ – I guess it's of limited interest because it's in Dutch, but I had great fun reading through them a while ago.
A few of the more popular games have smooth scrolling patches I believe to take advantage of the later hardware scrolling support.
I'd say that the MSX-2 and beyond games easily achieve a level somewhere between the NES and the Turbografx-16 when the hardware was really in full swing.
MSX 2+ had the Yamaha V9957 which added horizontal hardware scrolling but didn't support a light pen or mouse.
Looked very impressive back then. But technically a V9958 is best regarded as a V9938 with some cosmetic tweaks.
> and supported a light pen and mouse.
Mice are supported through the joystick ports which are standard across MSX models (so eg. MSX1 + mouse = just plug in & write software to use it).
V9938's light pen support was used in a few rare MSX2 machines. And yes V9958 removed this function.
It was fun and you learned where Dutch cities are located.
Take a look at the new MSX releases: USAS2 and Pampas & Selene