Back to volume control, though, horizontal wheels just don't seem to cover as much ground in a rotation as a vertical knob ...

The Cambridge Z88 had a Z80 at its heart, a decent keyboard, a text-only LCD display, and ran for an impressively long time on a set of AA alkaline cells. It made a handy portable word-processor ...

All the way back in 2005 (now 20 years ago, by the way), Logitech came out with the G15 - a full-size keyboard that featured six dedicated macro keys, and more interestingly, a small LCD screen.