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Reference.org
Timeline of operating systems
open-in-new
<p>This article presents a <a href="/facts/Chronology/QnyvW82G">timeline</a> of events in the history of computer <a href="/facts/Operating_system/8XTuvMh2">operating systems</a> from 1951 to the current day. For a narrative explaining the overall developments, see the <a href="/facts/History_of_operating_systems/PcDEg6t9">History of operating systems</a>. </p>