Sinclair C5 to guide development. Gus Desbarats, the C5's industrial designer, attributes the vehicle's flawed concept to Sinclair operating in a "bubble" and believes that Sinclair "failed to understand the difference between a new market, computing, and a mature one, transport, where there were more benchmarks to compare against". He comments that the experience of working on the C5 convinced him of the need for industrial designers such as himself to get "involved early in the innovation process, shaping basic configurations, never again [being] satisfied to simply decorate a fundamentally bad idea". Sinclair himself said in 2005 that the C5 "was early
Sinclair Executive consumption, creating issues with the reliability. The Executive Memory was launched in November 1973, with the same physical dimensions as the original, but with the ability to memorise subtotals from any number of chain calculations. There were at least 3 versions, including the black and white Type 1, and the Type 2 with a gold keyboard. The Executive Memory sold at the lower price of . Sinclair Executive The Sinclair Executive was the world's first "slimline" pocket calculator, and the first to be produced by Clive Sinclair's company Sinclair Radionics. Introduced in 1972, there were at least two different versions