Many of the things we do (1)______ on receiving information from other people. Catching a train, making a phone call and going to the cinema all involve information (2)______ stored, processed and communicated. In the past this information had to be kept on paper (3)______ , for example, books, newspapers and timetables. Now more and more information is put (4)______ computers. Computers play a role in our everyday lives, sometimes without us even realizing it. (50)______ the use of computers in both shops and offices. Big shops have to deal with very large (51)______ of information. They have to make sure that there are enough goods on the shelves for customers to buy, they need to be able to reorder before (52)______ run out. A lot of office work in the past involved information on paper. Once it had been dealt with by people, the paper was (53)______ for future reference. This way of working was never (54)______ easy or fast. A computer system is much more(55)______