Database Questions
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The terms “hardware” and “software” are used frequently in connection with computers. Hardware refers to the physical devices of a computer system. Thus, input, storage, processing, control, and output devices are hardware. A…
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To be useful, a computer system needs to communicate with its external environment. The input-output devices provide the capability to a computer system. They are also known as peripheral devices because they surround…
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Primary storage of a computer system has the following limitations: Limited Capacity – It is often necessary to store many millions, sometimes billions, and even trillions of bytes of data in a computer….
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CPU is the brain of a computer system. All major calculations and comparisons performed by a computer are carried out inside its CPU. CPU is also responsible for activating and controlling the operations…
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As we know that, the use of a smaller base often requires more positions to represent a given value, for example 910 = 10012. Hence, four positions are required instead of one to…
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Numeric data is not the only form of data handled by a computer. We often require to process alphanumeric data also. An alphanumeric data is a string of symbols, where a symbol may…
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As we already know that a computer stores data internally in a format that is not easily readable by human beings. This is the reason why input and output (I/O) interfaces are required….
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Even though the size, shape and performance, reliability and cost of computers have been changing over the years, the basic logical structure has not changed. No matter what shape and size of computer…
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The word computer comes from the word “compute” which means to calculate. Hence, people usually consider a computer to be calculating device than can perform arithmetic operations at high speed. In fact, the…
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