A hardware location for passing data in and out of a computing device. Personal computers have various types of ports, including internal ports for connecting disk drives, monitors, and keyboards, as well as external ports, for connecting modems, printers, mice, and other peripherals. In TCP/IP and UDP networks, "port" is also the name of an endpoint to a logical connection. Port numbers identify types of ports. For example, both TCP and UDP use port 80 to transport HTTP data. A threat might attempt to enter using a particular TCP/IP port.

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