On Wed, Jan 25, 2023 at 12:23 PM John-Paul Stewart via cctalk <
cctalk(a)classiccmp.org> wrote:
  On 1/25/23 11:53, Steve Lewis via cctalk wrote:
 And back on the stenography-keyboard like thing -- what about morphing
 keys?  If a keyboard had actual screens on the keys, and the keys change
 (the actual symbol) based on the context of whatever you're doing.  I
 
 know
  we have macros and reprogrammable keyboards, but
morphing the actual
 
 symbol
  on the keys might be neat.
 
 A keyboard using small 48x48 pixel OLED screens on each of the keys has
 been done.  It was many years ago and they were super expensive at the
 time.  As a result they were not commercially successful.
 
https://en.wikipedia.org/wiki/Optimus_Maximus_keyboard
 
I remember these.  Very cool.
But Steve's original query reminded me of videos I came across a few days
ago of the (very rare) Con Brio Synthesizer, which has a panel with a
myriad of buttons that light up/go dark depending on the context of the
mode, facilitating the operator in highlighting only those buttons
applicable in the current mode.  Here's a video that explains its operation:
https://www.youtube.com/watch?v=e-tr9FUGlr0
I had a hand in restoring that synth.
Sellam