Computer simply is defined as an electronic device which calculates the raw data given by user and gives the valuable result as an output.
Today’s computers come in many different forms. They range from massive, multipurpose mainframes and supercomputers to desktop-size personal computers. Between these extremes is a vast middle ground of minicomputers and workstations. Large minicomputers approach mainframes in computing power, whereas workstations are powerful personal computers.
Mainframes and large minicomputers are used by many businesses, universities, hospitals and government agencies to carry out sophisticated scientific and business calculations. These computers are expensive (large computers can cost millions of dollars) and may require a sizeable staff of supporting personal and a special carefully controlled environment.
Personal computer on the other hand is small and expensive. In fact, portable, laptop computers weighing less then 5-6 pounds are widely used by everyone now days. Personal computers are mostly used by schools and business and it is being used in household items too. Now days computers is thought from the primary level that is from 5 on words some school used it from the class 3 too.
This is the generation of computer, each and every field is using computer, it is said that this 21st century age is known as computer age. If one fails to take the knowledge of computer then it is believed that he/she can’t do anything in his life. The cost of these personal computers is so low that a single family can afford 2 of it; each and every family has got one computer.
Today’s computers come in many different forms. They range from massive, multipurpose mainframes and supercomputers to desktop-size personal computers. Between these extremes is a vast middle ground of minicomputers and workstations. Large minicomputers approach mainframes in computing power, whereas workstations are powerful personal computers.
Mainframes and large minicomputers are used by many businesses, universities, hospitals and government agencies to carry out sophisticated scientific and business calculations. These computers are expensive (large computers can cost millions of dollars) and may require a sizeable staff of supporting personal and a special carefully controlled environment.
Personal computer on the other hand is small and expensive. In fact, portable, laptop computers weighing less then 5-6 pounds are widely used by everyone now days. Personal computers are mostly used by schools and business and it is being used in household items too. Now days computers is thought from the primary level that is from 5 on words some school used it from the class 3 too.
This is the generation of computer, each and every field is using computer, it is said that this 21st century age is known as computer age. If one fails to take the knowledge of computer then it is believed that he/she can’t do anything in his life. The cost of these personal computers is so low that a single family can afford 2 of it; each and every family has got one computer.
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