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Functions of computers<br>Computer is one of the inventions of the 20th century that changed the world greatly. The first computers of the 1940s were enormous. But now they have the same buildings in every home and office.<br>Most machines do only one job, some are multifunctional( But no device is as multifunctional as computer. The parts of the machine (or its hardware) remain the same, you change only the program( A browser program is designed to look at pages on the internet( A word processor program lets you to print text and then change styles of fonts and sizes of<br>Page: 1 A database program is used for searching and sorting records. Such programs are used in shops, libraries, hospitals, accountant offices, and so on. What they do is collect a lot of data.<br>Computers are found everywhere and used in every sphere of life. In a plant one can make a computer model of a car or plane and check its resistance to stress. Such calculations without a computer can have taken several months. Computer is used at school: children watch films, presentations and web pages. This helps them to study effectively.<br>Computers also have some disadvantages. There's a good job, computer design solves problems, but their time is a problem. As computer is a complex device, one small breakage may stop its work. More over, the equipment is soon out of date.<br>B.D. All, there is a problem of compatibility. First of all, there are hardware devices which can't work with the old operating systems, such as a processor, a hard disk drive, a video card, etc. then, there are programs which need more resources than computer actually has.<br>Moreover, computers have become more complex and need to learn how to work with them. Computer viruses are caused by a lot of trouble, they can say, delete or steal computer data, and every user knows it will come from his experience.<br>And on top of all, computer is a multifunctional device, as we already know, so can be used both to do work and to entertain oneself. Children often fall prey to computer and internet: they play computer games, spend their free time chatting with friends on the Internet and do practically nothing. This aspect can't be denied.<br>To crown it all, computer is a good device like many others, designed to help people. But it's our own freedom to use it in commands without wasting time, but with the best results.<br>
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