©Si Barber. Moral rights asserted   (L-R) Warren East, CEO of ARM Holdings, Prof Andy Hopper founder of Virata,Herman Hauser founder of Acorn Computers, Charles Cotton author, David Braben founder of the Raspberry Pi computer and Prof Haroon Ahmed , Emeritus professor of Microelectronics Cambridge at the book launch of The Cambridge Phenomenon which examines the city's history as a place technological innovation today 8th May 2012... .