The computer is a high-speed electronic machine that handles information automatically to produce conclusions or actions useful to people. The computer is, without a doubt, the most complex machine ever devised and one of the most significant inventions of all time. It is hardly an exaggeration to say that the lives of few people anywhere in the world today are not affected by the computer. The computer can be used to advantage in almost every human activity. The first computers were used to aim guns, to correct navigation tables, and to solve ....