"iocs." YourDictionary, n.d. Web. 16 October 2018. <http://www.yourdictionary.com/iocs>.
iocs. (n.d.). Retrieved October 16th, 2018, from http://www.yourdictionary.com/iocs
(Input Output Control System) An early, rudimentary IBM operating system (1950s). It was a set of I/O routines for tapes and disks. Today's counterpart in the PC is the BIOS.
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