Generally, internalhardware components are those necessary for the proper functioning of while externalhardware components are computer to add or enhance functionality.
Motherboard. This is a printed circuit board that holds the central processing unit (CPU)
CPU- The CPU is the brain of the computer
RAM- is temporary memory
Hard disk drives are physical storage devices that store both permanent and temporary data in different formats
Solid state drive (SSD) are non-volatile, so permanent when the they can safely store data even computer is powered down.
Optical Drive - they enable the computer to read and interact with non-magnetic external media.
Heat Sink is installed directly atop the CPU, which produces the most heat among internal components.
Graphics processing unit
this chip-based device processes graphical data and functions as an extension main CPU.
Network Interface Card (NIC) is a circuit board or chip that enables the computer to connect to a network.