programmed I/O A way of controlling input/output activity in which the processor is programmed to interrogate a peripheral or a number of peripherals to see if they are ready for a data transfer. When a number of peripherals are involved the interrogation process is called polling. Compare interrupt I/O.
More From encyclopedia.com
Computer Program , pro·gram / ˈprōˌgram; -grəm/ (Brit. pro·gramme) • n. 1. a planned series of future events, items, or performances: a weekly program of films the prog… Homeotherm , ho·me·o·therm / ˈhōmēəˌ[unvoicedth]ərm/ (also ho·moi·o·therm) • n. Zool. an organism that maintains its body temperature at a constant level, usually… Feargus Oconnor , O'CONNOR, FEARGUS (1796–1855), Irish leader of the Chartist movement. Feargus Edward O'Connor was born in Cork, son of Roger O'Connor, a prominent An… Will-o-the-wisp , will-o'-the-wisp / ˈwil ə [voicedth]ə ˈwisp/ • n. an ignis fatuus. ∎ fig. a person or thing that is difficult or impossible to find, reach, or catch.… O Salutaris Hostia , O Salutaris Hostia (O saving victim). RC hymn sung at Benediction and some other services to plainsong melody or one of many comp. settings. Eugene (gladstone) Oneill , Eugene O'Neill (1888-1953) was among the foremost dramatists of the America theater. His main concern was with the anguish and turmoil that wrack the…
About this article
Updated About encyclopedia.com content Print Article
You Might Also Like