internal computer hardware components

Internal components collectively process or store the instructions delivered by the program or operating system (OS). These include the following:

Motherboard

This is a printed circuit board that holds the central processing unit (CPU) and other essential internal hardware and functions as the central hub that all other hardware components run through.

Central Processing Unit

The CPU is the brain of the computer that processes and executes digital instructions from various programs; its clock speed determines the computer's performance and efficiency in processing data.

Random Access Memory

RAM is temporary memory storage that makes information immediately accessible to programs; RAM is volatile memory, so stored data is cleared when the computer powers off.

Hard drive

Hard disk drives are physical storage devices that store both permanent and temporary data in different formats, including programs, OSes, device files, photos, etc.

Solid-state drive

SSDs are solid-state storage devices based on NAND flash memory technology; SSDs are non-volatile, so they can safely store data even when the computer is powered down.

Power Supply Unit

The PSU provides power to the ​various components and devices of a computer.

Graphics processing unit

This chip-based device processes graphical data and often functions as an extension to the main CPU.

Graphics processing unit.