The System Unit

FLASH MEMORY
A flash memory can be deleted from the compter system. Many handheld devices such as handphones, PDA etc use flash memory chips too save data

GRAPHIC CARD
A graphic card is a device which has a graphic processing unit that is design to show and make images, even in 3D graphic. The graphic card hep take the strain off the main processor and have their own memory to take the strain offf the RAM

SOUND CARDS
Sound cards is one of the most improtant cards and yet we still can use computer with out it. Sound cards enable the computer to output sound through speaker

NETWORK INTERFACE CARD. (NIC)
NIC which is short for Network Interface Card is a card in the system unit which allows network connection in the system unit.

PLUG AND PLAY
Plug & Play also known as PnP, is a phrase use to describe that work with computer system when they are connected to something


BUS LINE
The bus lines are the communication electronic lines. this means it connect different parts of the cpu to other parts