A central processing unit (CPU), also called a central processor or main processor, is the electronic circuitry within a computer that executes instructions that make up a computer program.
A motherboard (also called mainboard, main circuit board, system board, baseboard, planar board, logic board, and mobo) is the main printed circuit board (PCB) in general-purpose computers and other expandable systems.
Random-access memory (RAM /ræm/) is a form of computer memory that can be read and changed in any order, typically used to store working data and machine code.
A graphics processing unit (GPU) is a specialized electronic circuit designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device.
A computer case, also known as a computer chassis, tower, system unit, or cabinet, is the enclosure that contains most of the components of a personal computer (usually excluding the display, keyboard, and mouse).
Computer data storage is a technology consisting of computer components and recording media that are used to retain digital data.