The ROMS listing shows the usual built-in ROMs in the upper half, then Inter-Word occupying ROM 8, and finally the contents of the two ROM cartridges.

"Tube Beep" is my own little invention. Its sole function is to provide the VDU 7 bleep after a hard reset, which does not occur when a second processor is running. It is unplugged at the moment as it tends to have a few unexpected side-effects which I haven't ironed out yet.