PORTS Socket for external devices to connect to the system unit.

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Presentation transcript:

PORTS Socket for external devices to connect to the system unit. Some ports connect directly to the systems board while others connect to cards that are inserted into slots on the systems board. Some ports are standard features of most computer systems and others are more specialized.

Standard ports Serial ports - Use for wide variety purposes. - They are often used to connect a mouse, keyboard, modem and many others to system unit. - send data I bit at a time and very good for sending information over long distance.

ii) Parallel ports - Used to connect external devices that need to send or receive a lot of data over a short distance. - These ports usually send 8-bits of data simultaneously across eight parallel wires. - Parallel ports are mostly used to connect printers to the system unit.

iii) Universal serial bus (USB) ports - Replacing serial and parallel ports. They are faster, and one USB can be used to connect several devices to the system unit. iv) FireWire ports Also known as high performance serial bus. Fast as USB 2.0 ports and provide connections to specialized FireWire devices such camcorders.