Fundamentals of Computer > Central Processing Unit (CPU) > Standard and Specialized Expansion Ports
A port is a socket on the outside of the system unit that is connected to an expansion board on the inside of the system unit.
Standard Expansion Ports
Ports allow connecting common devices to computer, such as monitor, printer, keyboard, modem, mouse, speaker etc. Some commonly used ports are listed below:
| Serial Port (also called COM port) |  |
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Parallel Port |
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Network Adapter Port/ Network Port |
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Video Adapter Port/ Monitor Port |
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Audio Port
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Modem Port |
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Mouse and Keyboard Ports |
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Specialized Expansion Ports
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SCSI Port (Small Computer System Interface) |
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|
USB Port (Universal Serial Bus) |
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| FireWire Port (IEEE 1394 Port) |  |
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