Planet Sinclair

x The Machines
x Machines: 1970s
x Active Filter Unit
x The Black Watch
x Cambridge / Cambridge Scientific
x DM1 / DM2 / DM235 / DM350 / DM450 / PDM35 / PFM
O Enterprise /
Enterprise Programmable
x Executive /
Executive Memory
x MK14
x TV1A / TV1B / MON1A
x Oxford 100 / 200 / 300
x PP3
x President
x Project 605 / 80 / PZ8 / Q16 / Q30 / Stereo FM / Z-50
x Scientific / Scientific Programmable / Scientific Programmable Mk 2
x Sovereign
x Super IC-12
x Wrist Calculator

Last updated
8 Jan 1998

Enterprise / Enterprise Programmable

Two of Sinclair's last calculators, named diplomatically after Sinclair Radionics' government backers, the National Enterprise Board. They were launched in October 1977 and July 1978 respectively, and were amongst the last generation of calculators with red LED displays. They faced stiff competition from cheaper and less power-hungry Japanese LCD calculators which before long killed the LED calculator market. The Enterprise Programmable was Sinclair's last stab at an innovative calculator but by 1978 both models were being sold at a loss.