I recently acquired piece of hardware I had never heard of before: a SuperBox II unit. These were used in laserdisc kiosks to control industrial players via the serial port on the back. The most astonishing thing is
http://www.superbox.com/ is still online and all of the software and documentation has been preserved.
The AC adapter was included as well as the cable that goes to the laserdisc player, but I'll have to make my own user input device consisting of buttons.
Has anyone ever heard of this device or know of similar ones?