Sinclair Research Ltd is a British consumer electronics company founded by Sir Clive Sinclair in Cambridge. Originally incorporated in 1973 as Ablesdeal Ltd., it remained dormant until 1976, and did not adopt the name Sinclair Research until 1981.

In 1980, Clive Sinclair entered the home computer market with the ZX80 at £99.95, at the time the cheapest personal computer for sale in the UK. In 1982 the ZX Spectrum was released, later becoming Britain's best selling computer, competing aggressively against Commodore and Amstrad.

At the height of its success, and largely inspired by the Japanese Fifth Generation Computer programme, the company established the "MetaLab" research centre at Milton Hall (near Cambridge), in order to pursue artificial intelligence, wafer-scale integration, formal verification and other advanced projects. The combination of the failures of the Sinclair QL computer and the TV80 led to financial difficulties in 1985, and a year later Sinclair sold the rights to their computer products and brand name to Amstrad. Sinclair Research Ltd still exists today as a one man company, continuing to market Sir Clive Sinclair's newest inventions.

Sir Clive Marles Sinclair (born 30 July 1940) is an English entrepreneur and inventor, most commonly known for his work in consumer electronics in the late 1970s and early 1980s.

After spending several years as assistant editor of Practical Wireless and Instrument Practice, Sinclair founded Sinclair Radionics in 1961, where he produced the first slim-line electronic pocket calculator in 1972 (the Sinclair Executive). Sinclair later moved into the production of home computers and produced the Sinclair ZX80, the UK's first mass-market home computer for less than GB£100, and later, with Sinclair Research, the ZX81 and ZX Spectrum; the latter is widely recognised for its importance in the early days of the British home computer industry. Sinclair stated in 2010 that he does not use computers himself, using the telephone in preference to email.

Knighted in 1983, Sinclair formed Sinclair Vehicles and released the Sinclair C5, a battery electric vehicle that was a commercial failure. Since then Sinclair has concentrated on personal transport, including the A-bike, a folding bicycle for commuters that weighs 5.5 kilograms (12 lb) and folds down small enough to be carried on public transport.

Kevin Sinclair, MBE, (December 12, 1942 – December 23, 2007) was a journalist, author and passionate supporter of Hong Kong. He spent more than 50 years reporting the news and over 40 of those in Hong Kong. Born in New Zealand, Sinclair worked at various points in his career for the The Star, the Hong Kong Standard, and, for a long time, the South China Morning Post.

Kevin Sinclair was one of the first Western journalists to visit China, even before the "Bamboo Curtain" opened up. He reported from many remote provinces where he became known as the famous "mad journalist with the hole in his throat", due to a 1978 tracheostomy that robbed him of his natural voice and left him with the trademark hole through which he learned to speak again.

Sinclair is the author of some 24 books. His first, No Cure, No Pay: Salvage in the South China Seas was published by SCMP Books in 1981 and his most recent, Tell Me A Story: Forty Years of Newspapering in Hong Kong and China, also by SCMP Books, was published shortly before his death. 4 days before his death, he attended a book signing at Hong Kong's Foreign Correspondent's Club - an event even attended by Hong Kong Chief Executive Donald Tsang, one of Sinclair's many friends.

Alan Michael Sugar, Baron Sugar (born 24 March 1947) is a British business magnate, media personality, and political advisor. From humble origins in the East End of London, Sugar now has an estimated fortune of £770m (US$1.14 billion), and was ranked 89th in the Sunday Times Rich List 2011. In 2007, he sold his remaining interest in the consumer electronics company Amstrad, his largest and best known business venture.

Sugar is also notable for his time as chairman of Tottenham Hotspur from 1991 to 2001. He starred in the BBC TV series The Apprentice, which has run to eight series. It has been broadcast annually since 2005 and is based upon the popular U.S. television show of the same name, featuring the American entrepreneur Donald Trump.

Sugar was born in Hackney, east London. He is the youngest of four children of Fay (1907–1994) and Nathan (1907–1987) Sugar. His father was a tailor in the East End garment industry.

When Sugar was a child, his family lived in a council flat. Because of his profuse, curly hair, he was nicknamed "Mopsy". He attended Northwold Primary School and then Brooke House Secondary School in Upper Clapton, Hackney, and made extra money by boiling and selling beetroot from a stall. In The Apprentice (2009), Sugar revealed "I was in the Jewish Lads Brigade, Stamford Hill Division, Trainee Bugler, but it didn't make me sell computers!" After leaving school at 16, he worked briefly for the civil service as a statistician at the Ministry of Education. He started selling car aerials and electrical goods out of a van he had bought with his savings of £100.