Case: computer chasis, tower,system unit, cabinet, base unit or simply case and sometimes incorrectly refered CPU.

 

Power Suplies: converts mains AC to low voltage regulated DC powerfor the internal components of a computer.

 

The Mother board: is the main printed circuit board found in computers and other expandable systems. It holds and allows communication between many of the crucial electronic components of a system.

 

CPU: (Central proccesing unit) is the brain of a computer is also known as the procesor or microscenssor.

 

Random-access memory  is a form of computer data storage. A random-access memory device allows data items to be accessed (read or written) in almost the same amount of time irrespective of the physical location of data inside the memory.

 

Video Card:know as a display adapter, grafic card, video board or video controlleris a IC or internal board that creates a picture on a display.

 

Storage (SSD): A solid-state drive  though it contains no actual disk, nor a drive motor to spin a disk is a solid-state storage device that uses integrated circuit assemblies as memory to store data persistently.

 

Storage (HDD): hard disk, hard drive or fixed disk is a data storage device used for storing and retrieving digitalinformation using one or more rigid ("hard") rapidly rotating disks  coated with magnetic material.

 

Optical Drive: is a diskdrive that uses laser light or electromagnetic waves within or near the visible light spectrum as part of the process of reading or writing data to or fromoptical discs.