Watford Print ROM V0.1E (1983)(Watford Electronics)
Watford Print ROM V0.1C (1983)(Watford Electronics)
RAM-ROM (19xx)(Watford Electronics)[bootfile]
Le Modem V1.00 (19xx)(Watford Electronics)
BeebFont (19xx)(Watford Electronics)[a]
Prestel V1.00 (19xx)(Watford Electronics)