Overview of a Computer System

A computer system is an integrated set of hardware and software designed to process data and produce useful information.

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The main components of a computer system are the Central Processing Unit (CPU), memory (RAM and storage), input devices, output devices, and peripheral devices.

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The CPU is the brain of the computer, responsible for executing instructions from programs by performing basic arithmetic, logic, control, and input/output operations.

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RAM is a type of volatile memory that stores data and machine code currently being used by the computer. It allows for fast read and write access to a storage medium.

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RAM is temporary, volatile memory used for active processes, while storage (such as hard drives and SSDs) is non-volatile and used for long-term data retention.

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Input devices are peripherals used to provide data and control signals to a computer. Examples include keyboards, mice, scanners, and microphones.

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Output devices are peripherals that receive data from a computer and present it to the user. Examples include monitors, printers, and speakers.

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An operating system is system software that manages computer hardware, software resources, and provides common services for computer programs.

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