Who are contributed to the development of computers?

Bill Gates and Paul Allen developed Microsoft The computer really got off the starting blocks during WW2. Deciphering the Nazi U boat codes were vital to save the UK from starvation in 1939-41. German submarines were sinking virtually every ship making for the British coast. Alan Turing, a young Cambridge mathematician, joined the 'Enigma' code decryption unit at Bletchley Park in the English Midlands. A vacuum tube based computer called 'Collosus designed by Harry Flowers electronically read a paper tape with the signal codes received from the sub's by Morse coded radio transmissions monitored by allied radio operators. Turing worked on a software program running an electromechanical contrivance called a 'bombe' to decode these message into plain text. Polish scientists did the early work on Enigma and brought their knowledge to Britain when Hitler invaded Poland in 1939. After the war Winston Churchill ordered every trace of it's existence to be erased and so other computing machines got precedence since it was so secret. Collossus and a bombe have recently been rebuilt at Bletchley Park museum.