Considering how recent these development are, it is even more remarkable that as long ago as the 1960s, an Englishman, Leon Bagrit, was able to predict some of the uses of computers which we know today. Bagrit dismissed the idea that computers would learn to 'think' for themselves and would 'rule the world', which people liked to believe in those days. Bagrit foresaw a time when computers would be small enough to hold in the hand, when they would be used in hospitals to help doctors to diagnoses illnessess, when they would relieve office workers and accountants of dull, repetitive clerical work. All these computer uses have become commonplaces.