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The typical school has 1 computer per 20 students a ratio that computer educators feel is still not high enough to affect classroom learning as much as books and classroom conversation Some critics see computer education as merely the latest in a series of unsuccessful attempts to revolutionise education through the use of audio- and visually-oriented non print media For example motion pictures broadcast television filmstrips audio recorders and videotapes were all initially heralded for their instructional potential but each of these ultimately became minor classroom tools alongside conventional methods Communications Satellite A communications satellite is an artificial SATELLITE placed into orbit around the Earth to facilitate communications on Earth Most long-distance radio communication across land is sent via MICROWAVE relay towers In effect a satellite serves as a tall microwave tower to permit direct transmission between stations but it can interconnect any number of stations that are included within the antenna beams of the satellite rather than simply the two ends of the microwave link Computer Crime Computer crime is defined as any crime involving a computer accomplished through the use or knowledge of computer technology Computers are objects of crime when they or their contents are damaged as when terrorists attack computer centres with explosives or gasoline or when a computer virus a program capable of altering or erasing computer memory is introduced into a computer system Personal Computer A personal computer is a computer that is based on a microprocessor a small semiconductor chip that performs the operations of a cpu Personal computers are single-user machines whereas larger computers generally have multiple users Personal computers have many uses such as Word processing communicating to other computers over a phone line using a modemdatabasesleisure games are just some of the uses of a Personal Computer Computers for Leisure Games As they proliferated video games gained colour and complexity and adopted the basic
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