@cstross @sdarlington @keyboards

And multiple programming languages were available.  You could draw and print the Mandelbrot set on them, if you had half a day or so spare.

They were great, for the time.  As long as no-one wanted to use a TV or radio nearby at the same time.  Shielded they were not, and the mice cables packed a punch across the spectrum.  Which is how I became a creature of the night. 😉