Computer Parts

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Motherboard

The motherboard serves to connect all of the parts of a computer together. The CPU, memory, hard drives, optical drives, video card, sound card and other ports and expansion cards all connect to the motherboard directly or via cables.
Basic Personal Computer (PC) Tutorial - To Know PC Componets System Parts (Complete Chapter)

Hard drive

Storage is the hard drive’s responsibility. Everything you keep on your computer is on a hard drive. Not just documents, pictures, music, and videos. Your programs, your preferences, even your operating system—they’re all stored on your computer’s hard drive.

Power supply

The power supply unit is the piece of hardware that's used to convert the power provided from the outlet into usable power for the many parts inside the computer case.

System fan

A computer fan is any fan inside, or attached to, a computer case used for active cooling, and may refer to fans that draw cooler air into the case from the outside, expel warm air from inside, or move air across a heat sink to cool a particular component.

Processor(CPU)

The Central Processing Unit (CPU) is responsible for interpreting and executing most of the commands from the computer's hardware and software.

Floppy

The floppy drive is a piece of computer hardware that reads data from, and writes data to, a small disk.