Changes
* AMSCASE ([[Silicon Systems|SILICON SYSTEMS]]) (1987) SERIAL INTERFACE - COMMUNICATION
* [[Amstrad Serial Interface|Amstrad RS232 Interface]] ([[Amstrad|AMSTRAD]])
* Amstrad Trackerball ([[Datapen Microtechnology Ltd|Datapen MicroTechnology Ltd]]) Trackball/Rollerball and Software
* [[Commstar v21/23 modem|Amstrad V21/V23 Modem]] (Amstrad) and/or ([[PACE]]) (1986)
* [[AMX Mouse|Amx mouse]] (ADVANCED MEMORY SYSTEMS) (1987) Mouse Interface + Driver software
