introduction to computer: To day computer comes form many different ways. Their range form the massive,multipurpose mainframes and supercomputer to desktop-size computers.
mainframes and large minicomputer are used by many businesses, universities, hospitals and government agencies to carry out sophisticated scientific and business calculations. These computer are expensive an may require a size able staff supporting personnel and a special, carefully controlled environment
personal computers, on the other hand, are small and inexpensive. In fact, portable, battery-powered "laptop" computers weighing less than 5 or 6 pounds are now widely used by many students and travelling professionals.
mainframes and large minicomputer are used by many businesses, universities, hospitals and government agencies to carry out sophisticated scientific and business calculations. These computer are expensive an may require a size able staff supporting personnel and a special, carefully controlled environment
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