Tor wrote:
I worked with two different types of minicomputers and I had a terminal with 4 x RS232 (or current loop, as jumpered) inputs, and could switch between them with a keypress. Great space saver.
I had one with just 2 ports, but other than that it was pretty much the same thing.
On the Alpha Micro, we had the capability of swapping user sessions on a single terminal, but they were on the same host. You'd likely use GNU Screen for that today on a modern Linux box, there was a commercial product called Facet Term back in the day that did the same thing for Unix machines.
Other than that, it was the good ol' A/B box, which provided some capability, however inelegantly.
The biggest problem I had when I had multiple terminals on my desk is I'd have a keyboard in my lap, and I'd simply stare at the other terminal and start typing away. Of course, nothing would happen, save cursing for using the wrong keyboard. In those situations I recommend DIFFERENT terminals, to help act as a cognitive switch.
When we were converting from AMOS to Unix, it was simple to switch as I went from a Unix terminal to an AMOS terminal, and all of muscle memory and commands switched implicitly in little brain. Never really had a problem typing "DIR" on Unix and "ls" on AMOS. But, later we had an AMOS workspace on top of Unix -- that was a disaster, never knew what I should type, so it didn't last very long.
And at least AMOS and Unix were different enough in contrast to Unix and Apollo DOMAIN. That was an evil mixture. (ls for Unix, ld for Apollo....terrible, terrible to switch back and forth to).