How Computers Work

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The word computer refers to an object that can accept some input and produce some output. In fact, the human brain itself is a sophisticated computer, and scientists are learning more about how it works with each passing year. Our most common use of the word computer is known to describe an electronic device containing a microprocessor. A microprocessor is a small electronic device that can carry out complex calculations in the blink of an eye. Microprocessors can be found in many devices that are used use each and every day; such as cars, refrigerators and televisions. The most recognized device with a microprocessor is the personal computer, or PC. In fact, the concept of a computer has become nearly synonymous with the term PC. When someone hears the word PC, most people probably visualize an enclosed device with an attached video screen, keyboard and some type of a pointing device, like a mouse or touchpad. An individual might also envision different forms of PCs, such as desktop computers and laptops. The term PC has been associated with certain brands, such as Intel processors or Microsoft operating systems. Computers have various characteristics such as running software applications that are designed for specific work and play activities, adding and removing hardware or software, running an operating system to interface between the microprocessor and the user. Most computers today are designed for use by one person at a time. However, a CPU and a RAM are common internal components of the computer. The acronym CPU stands for central processing unit. The CPU is also known to be the brain of the computer. The central processing unit is mainly responsible for performing all of the mathematical calculations that are needed for a computer to function properly. The Intel core i7 is a prime example of the central processing unit. On the other hand, the

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