![]() Think yourself lucky that you never encountered the ones where the encoder is a round PCB with tracks in the encoder pattern and a set of springy contacts. ![]() UofU had some of these in the CS lab around 2001 and between this and the out of date version of Emacs may be part of why the Linux side of the lab got more use.įor some reason, there was a time when new programs kept using previously unused mouse driver features, requiring frequent driver updates. The supply of still-reliable RS232 mice must therefore be dwindling, and if you have a Windows 3.1 PC to keep alive then we can see the ability to use a more modern pointing device has a lot going for it. ![]() In the early 1990s mice were not the reliable optical devices we have today, instead they had nasty mechanical connections inside, or if you were extremely lucky, optical encoder wheels. ![]() Hes created a PS2 to RS232 mouse converter, and it takes the form of a little PCB with an AT90S2313P microcontroller to do the translation and an RS232 level converter chip. Ibm Usb Serial Parallel Adapter Part Number 22P9035 Software To Recognise. ![]()
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