A+ Certification/Ports

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Ports on the computer are used to send or receive data. Physical ports are usually found in the back of the system and allow connecting devices to the computer.

The most common ports are:

Port name	Image	Description
9-pin Serial
25-pin Serial
Parallel
SCSI		Small Computer Systems Interface.
VGA
DVI
Audio		Used to connect audio devices, such as speakers, microphones, etc.
Universal Serial Bus (USB)		An external bus which can support up to 127 peripheral devices daisy chained on a single port. It is quickly replacing serial and parallel ports.
Firewire