- Geneve OS (formerly known as MDOS)
SEE ALSO Programming languages
ALSO,see Software Publishers:-
Christine Computing - UK publisher of TI99/4A and other software operated by Ian Godman and his wife Christine.
Intrigue Software - UK publisher of cassette games for the TI99/4a operated by Dennis Webb and his family.
Stainless software - UK publisher of TI99/4 and 4A only software operated by Stephen Shaw.