Adapter: It’s a circuit board that is attached with port and by this processor will control and communicate others devices.
Port: It will help us to attach the devices. Different types of port are: Serial, parallel, USB etc.
PCI Slot: It will allow to attach extra device with PC such as: TV card,NIC(LAN Card) etc.
Power Supply: Pc needs four types of DC voltages +5, -5, +12, -12. Power supply unit will convert AC to required Dc voltage.
Display Adapter: It works with mo monitor. Ex: VGA, SVGA ,CGA etc.
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