The Museum of Computing is delighted to announce that Sir Clive Sinclair will be guest of honour at the launch party for the Museums' latest exhibition. 'CALCULATOR' from the Abacus to the Microchip opens to the public from 7th March 2006 and will feature over 100 exhibits, tracing the history of the incredible devices man has built to aid his mathematical manipulations. The undoubted star of the show is the stunning gold plated Sinclair Sovereign, once described as the worlds most beautiful calculator. The exhibition will run for six months, admission is free. For more information www.museum-of-computing.org.uk Simon Webb, Curator Museum of Computing