Most people think of computers are very mordern inventions, products of our new technological age. But actually, the idea for computer (1)............................... worked out over two centuries ago by a man (2)........................... Charles Babbage. Babbage was born (3)............................ 1791 and grew up to be a brilliant mathematician. He drew up plans for several calculating machines (4).............................. he called "engines". But despite the fact that he (5)........................... building some of these, he never finishedany of them. Over the years people have argued (6).............................. his machines would ever work. Recently, however, the science Museum in London has finished building (7)............................... engine based on of Babbage's designs. (8)............................ has taken 6 years to complete and more (9)............................. four thousand parts have been specially made. Whether it works or not, the machine will be on show at special exhibition in the science Museum (10).............................. remind people of Babbage's work.