Sinclair C5 The C5 would be available initially by mail order at a cost of £399 and would subsequently be sold via high-street stores. Sinclair issued a glossy sales brochure characterising the vehicle as a part of an ongoing exercise in "cutting giants down to size, turning impersonal tyrants into personal servants". The brochure highlighted Sinclair's achievements in producing affordable pocket calculators, home computers, and pocket televisions and declared, "with the C5, Sinclair Vehicles puts personal, private transport back where it belongs – in the hands of the individual." The photographs accompanying the text showed housewives and teenagers driving the C5 to
Sinclair QDOS Sinclair QDOS QDOS is the multitasking operating system found on the Sinclair QL personal computer and its clones. It was designed by Tony Tebby whilst working at Sinclair Research, as an in-house alternative to 68K/OS, which was later cancelled by Sinclair, but released by original authors GST Computer Systems. Its name is not regarded as an acronym and sometimes written as Qdos in official literature (see also the identically-pronounced word kudos). QDOS was implemented in Motorola 68000 assembly language, and on the QL, resided in 48 KB of ROM, consisting of either three 16 KB EPROM chips or one 32