The Jupiter Ace by Jupiter Cantab was a British home computer released in 1982. The Ace differed from other microcomputers of the time in that its programming environment used Forth instead of the more popular BASIC. This difference, along with limited available software and poor character based graphic display, limited sales and the machine was not a success.
Jupiter Cantab was formed by Richard Altwasser and Steven Vickers. Both had been on the design team for the ZX Spectrum: Altwasser did some work on the development of the ZX-81 and in the design of the hardware of the Spectrum. Vickers adapted and expanded the 4K ZX80 ROM to the 8K ZX81 ROM and wrote most of the ROM for the Spectrum.
The Jupiter Ace was named after an early British computer, the Pilot ACE, and went on sale on September 22, 1982 with a price of £89.95.
Sales to the general public were slow. Initially the computer was only available