(1) (Input/Output port) A pathway into and out of the computer. See port.
(2) (Input/Output port) In a PC, an address used for input or output. See PC I/O addressing.
"I/O port." YourDictionary, n.d. Web. 25 May 2018. <http://www.yourdictionary.com/i-o-port>.
I/O port. (n.d.). Retrieved May 25th, 2018, from http://www.yourdictionary.com/i-o-port