These are where the cards such as NIC and graphics card are installed.

This is a form of computer data storage that stores data and machine code currently being used

This is a data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material.

What is the main printed circuit board (PCB) found in general purpose microcomputers and other expandable systems. It holds and allows communication between many of the crucial electronic components of a system

What is an electrical device that supplies electric power to an electrical load. The primary function of a power supply is to convert electric current from a source to the correct voltage, current, and frequency to power the load.

What is an internal expansion card that provides input and output of audio signals to and from a computer under control of computer programs.

Which tool is used to tighten screw with positive sign?

The main storage of your computer is