Computer is a machine which accepts data and gives us output. The ability to store vast data as well as to execute the lists of instruction (known as programs) has distinguished computer from a calculators. It is the super machine without which work cannot be carried out.
Now a day, computer has reached in many fields and ever nook and corner of businesses like hospitals, schools and colleges, general stores, airports, railways, etc. It can be easily said that without the help of computers the entire business is at stand still. There are many Indian and foreign companies which are engaged in the manufacturing and dealer of personal computers from lower price range to highest price range. Today many people also prefer laptops which occupy less storage place and are useful to store wide data.
The modern computers have its origin with two different technologies – like that of programmability and that of automated calculations. It performs its work with more capable and desirable speed and never likely to make even a single mistake. With the expansion of world’s technology, the computer has much wider scope.
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