operating system

noun
Updated on: 5 Dec 2017

Definition of operating system

: software that controls the operation of a computer and directs the processing of programs (as by assigning storage space in memory and controlling input and output functions)

Recent Examples of operating system from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'operating system.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of operating system

1961


OPERATING SYSTEM Defined for English Language Learners

operating system

noun

Definition of operating system for English Language Learners

  • computers : the main program in a computer that controls the way the computer works and makes it possible for other programs to function


OPERATING SYSTEM Defined for Kids

operating system

noun

Definition of operating system for Students

: a program or series of programs that controls the operation of a computer and directs the processing of the user's programs


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