Monday, 5 December 2011

port


 An interface on a computer to which you can connect a device.Personal computers have various types of ports. Internally, there are several ports for connecting disk drives, display screens, and keyboards. Externally, personal computers have ports for connecting modemsprintersmice, and other peripheral devices.
Almost all personal computers come with a serial RS-232C port or RS-422port for connecting a modem or mouse and a parallel port for connecting a printer. On PCs, the parallel port is a Centronics interface that uses a 25-pinconnectorSCSI (Small Computer System Interface) ports support higher transmission speeds than do conventional ports and enable you to attach up to seven devices to the same port.
(2) In TCP/IP and UDP networks, an endpoint to a logical connection. The port number identifies what type of port it is. For example, port 80 is used for HTTPtraffic. Also see Well-Known TCP Port Numbers in the Quick Referencesection of Webopedia.
(v.) To move a program from one type of computer to another. To port anapplication, you need to rewrite sections that are machine dependent, and then recompile the program on the new computer. Programs that can be ported easily are said to be portable.

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