Port

Related to the Internet  , a port is a part of a Web server  that handles requests for particular services (FTP  , TELNET  , WWW ).Each of those services has its own port number, where it "listens" for requests. For example, WWW servers normally listen on port 80. When you use a non-standard port number, it must be specified in the URL  after a colon (:) (eghttp://www.domain.com:8000)

3 meanings. First and most generally, a place where information goes into or out of a computer, or both. E.g. the serial port on a personal computer is where a modem would be connected.

On the Internet port often refers to a number that is part of a URL, appearing after a colon (:) right after the domain name. Every service on an Internet server listens on a particular port number on that server. Most services have standard port numbers, e.g. Web servers normally listen on port 80. Services can also listen on non-standard ports, in which case the port number must be specified in a URL when accessing the server, so you might see a URL of the form:

gopher://peg.cwis.uci.edu:7000/

shows a gopher server running on a non-standard port (the standard gopher port is 70). Finally, port also refers to translating a piece of software to bring it from one type of computer system to another, e.g. to translate a Windows program so that is will run on a Macintosh.

See Also: Domain Name , Server , URL

A port is a transport layer demultiplexing value. Each application has a unique port number associated with it. See also: Transmission Control Protocol, User Datagram Protocol.

A connection to a computer to enable other devices,such as printers,modems,monitors,keyboards,mice,etc. To interface with the computer. A logical connection to a network.Different port numbers are used for different purposes,for example,http usually users port 80.

A point of I/O access to a computer or system. Also, to convert a program from one platform to run on another (e.g., from Unix to MS-DOS or MacOS).