COMPONENTS OF A WINDOWS DESKTOP

PCI slots

The Expansion Buses

An expansion bus is an input/output pathway from the CPU to peripheral devices. It is made up of a series of slots on the motherboard. Expansion boards (cards) plug into the bus.

PCI is the most common expansion bus in a PC and other hardware platforms. Buses carry signals such as data, memory addresses, power, and control signals from component to component. Other types of buses include ISA and EISA.

Expansion buses enhance the PC's capabilities by allowing users to add missing features to their computers by slotting adapter cards into expansion slots