A+ Certification/Exam Objectives/Hardware/Basics/Ports
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 | Video Graphics Array. Usually a blue cable or connector to attach a monitor. | |
| DVI | Digital Visual Interface. Usually a white cable or connector to attach a monitor. | |
| 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 |
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