Computer Basics

Front

A computer

Back

A computer is an electronic device that operates under the control of instructions stored in its own memory unit. It performs input, processing, and output functions.

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How Do Computers Work? Computer Architecture: User Applications interact with the Operating System, which communicates with the Hardware. Computer Components: Hardware includes mechanical parts, while Software is divided into System Software (Operating System, Device Drivers) and Application Software (Application Programs).

Back

Computers function through a layered architecture where user applications rely on the operating system to manage hardware. The components of a computer are categorized into hardware (physical parts) and software (system and application software).

Front

A labeled diagram of computer hardware components.

Back

Computer hardware refers to the physical components mounted inside a case. It includes all electronic components and mechanical components.

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System Cooling Fan

Back

The System Cooling Fan helps maintain optimal temperature inside the computer by dissipating heat generated by internal components.

Front

Motherboard

Back

The Motherboard is the main circuit board that connects and allows communication between all components of the computer.

Front

CPU - Processor

Back

The CPU (Central Processing Unit) is the brain of the computer, responsible for executing instructions and processing data.

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Floppy Drive

Back

The Floppy Drive is a legacy storage device used to read and write data on floppy disks.

Front

CPU Heat Sink

Back

The CPU Heat Sink is a cooling device that absorbs and dissipates heat from the CPU to prevent overheating.

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Hard Drive

Back

The Hard Drive is a storage device used to store data, files, and the operating system permanently.

Front

Optical Drive

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The Optical Drive is used to read and write data on optical discs such as CDs, DVDs, and Blu-ray discs.