Question
Illustrate the main parts and functions of a computer.
Answer :
Word Count : 532
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A computer is an electronic device that accepts data as input, processes it according to instructions, stores information, and produces meaningful output. In the field of Understanding Computer Applications, knowledge of the main parts of a computer and their functions is essential because each component contributes to the efficient operation of the system. A computer system consists of hardware and software components that work together to perform various tasks. The major parts of a computer include the Central Processing Unit (CPU), input devices, output devices, memory, and storage devices. The CPU is considered the brain of the computer because it controls all operations and processes data. It consists mainly of three units: the Arithmetic Logic Unit (ALU), Control Unit (CU), and registers. The ALU performs arithmetic operations such as addition, subtraction, multiplication, and division, along with logical operations like comparison and decision-making. The Control Unit manages and coordinates all activities of the computer by directing the flow of data between different components. Registers are small, high-speed storage locations inside the CPU that temporarily hold data and instructions during processing. Input devices are used to enter data and instructions into a computer. The keyboard is one of the
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