operating system
n.
Software designed to control the hardware of a specific data-processing system in order to allow users and application programs to make use of it.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
operating system
n
(Computer Science) the set of software that controls the overall operation of a computer system, typically by performing such tasks as memory allocation, job scheduling, and input/output control
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
op′erating sys`tem
n.
the software that directs a computer's operations, as by controlling and scheduling the execution of other programs and managing storage and input/output.
[1960–65]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
op·er·at·ing system
(ŏp′ə-rā′tĭng) Software designed to control the hardware of a specific data-processing system in order to allow users and programs to make use of the system.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
| Noun | 1. |  operating system - (computer science) software that controls the execution of computer programs and may provide various servicesplatform - the combination of a particular computer and a particular operating system computer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures software, software package, software program, software system, computer software, package - (computer science) written programs or procedures or rules and associated documentation pertaining to the operation of a computer system and that are stored in read/write memory; "the market for software is expected to expand" disk operating system, DOS - an operating system that is on a disk executive program, supervisory program, supervisor - a program that controls the execution of other programs Windows - (trademark) an operating system with a graphical user interface |
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