Dictionary

operating system

noun

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

Full 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)
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First Known Use of OPERATING SYSTEM

1961
OPERATING SYSTEM Defined for Kids

operating system

noun

Definition of OPERATING SYSTEM for Kids

:  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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