And how about the mouses?
Now we well know the MSX type, currently using something similar on the Enterprise.
Which other protocols used on another machines?
Using serial (it is also exist on Enterprise) or PS/2 mouse directly are possible? I afraid these have a complicated protocol, using interrupts, etc...
Probably the most easy way to use modern mouse: create MSX like mouse port, and attach PS/2 -> MSX converter (many solutions exist, also possible include the converter microcontroller to the new interface)?