FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -A graphics card (also called a video card, display card, graphics adapter, VGA card/VGA, video adapter, display adapter, or colloquially GPU) is a computer expansion card that generates a feed of graphics output to a display device such as a monitor.

Detailed explanation-2: -A sound card (also known as an audio card) is an internal expansion card that provides input and output of audio signals to and from a computer under the control of computer programs.

Detailed explanation-3: -With hardware, an expansion is a term that describes adding additional hardware to your computer. For example, an expansion may be adding a video card with more capabilities, a DVD drive, new hard drive for additional disk space, or a sound card.

Detailed explanation-4: -Operating system (OS) – a software that controls and coordinates the computer hardware devices and runs other software and applications on a computer. It is the main part of system software and a computer will not function without it.

Detailed explanation-5: -Read-only memory, or ROM, is a type of computer storage containing non-volatile, permanent data that, normally, can only be read, not written to. ROM contains the programming that allows a computer to start up or regenerate each time it is turned on.