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What is computer? Write its functions |
Answer» A computer is a electronic machinery. Taking data and instructions from a user, processing\xa0the\xa0data as per instructions, and displaying or storing\xa0the\xa0processed data, are\xa0the\xa0four major\xa0functions\xa0of a\xa0computer. These\xa0functions\xa0are also known as\xa0the\xa0input\xa0function, process\xa0function, output\xa0function, and storage\xa0function, respectively. A\xa0computer\xa0is a machine that can be programmed to manipulate symbols.\xa0Its\xa0principal characteristics are: It responds to a specific set of instructions in a well-defined manner. It can execute a prerecorded list of instructions (a program). It can quickly store and retrieve large amounts of data. A computer is a\xa0device for working with information. The information can be numbers, words, pictures, movies, or sounds.People use computers every day at work, at school, and at home. Computers are used in factories to control how things are made and in offices to keep records. People also use computers for sending e-mail, writing reports, shopping, banking, listening to music, and playing\xa0games. The\xa0Internet, which is a huge network of linked computers, provides information from all over the world. |
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