The entrepreneur behind the Amstrad computer brand bought Sinclair Research from his arch-rival Sir Clive Sinclair for £5m.
Alan Sugar's rags to riches rise continued as he took over and ran Tottenham Hotspur FC from 1991-2000 and later sold Amstrad for £125m.
Now, Lord Sugar is best known for his role on the BBC show The Apprentice, which he has fronted since 2005.
Report by Guinnesse.
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