Yesterday I discovered that one of the systems at work is based on the old WYSE computer or OS. It's a terminal session and it has buttons that you can click on in the GUI such as Do, Backtab, PF1, and F13-F20. Besides knowing what a WYSE keyboard looks something like...

From
here.
I'd like to know more about the keyboard and WYSE. Was it an OS? A computer system? What was the design intent?
Teach me about the WYSE keyboard and the system associated.It has been super entertaining for me to be clicking on the F20 button and knowing what the keyboard would have looked like. I wonder if I brought one of my boards in, like an M122, would it work with this system terminal program?