operating system

[ op-uh-rey-ting sis-tuhm ]

noun

, Computers.

1. the collection of software that directs a computer's operations, controlling and scheduling the execution of other programs, and managing storage, input/output, and communication resources. : OS

operating system

noun

1. 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

operating system

/ ŏp′ə-rā′tĭng /

1. Software designed to handle basic elements of computer operation, such as sending instructions to hardware devices like disk drives and computer screens, and allocating system resources such as memory to different software applications being run. Given uniformly designed operating systems that run on many different computers, developers of software do not need to concern themselves with these problems, and are provided with a standard platform for new programs.

operating system

1. The software that allows computer users to run applications with the hardware of a specific system. Microsoft® Windows® or Apple® Computer's OS are examples of operating systems.

Word History and Origins

Origin of operating system¹

First recorded in 1960–65

Example Sentences

Apple Intelligence is a key feature on Apple’s newest operating system, which the company hopes will propel more customers to upgrade and buy more devices.

From Los Angeles Times

An operating system called /e/OS might have been the answer Mr Mirza was looking for.

From BBC

The Google-powered Android operating system also has a built-in earthquake early warning app.

From Los Angeles Times

“There are just so many devices, so many operating systems, so many different applications out there that you won't find anyone that knows everything in depth,” he says.

From BBC

Keep software updated: Update your devices, apps and operating systems to the latest versions.

From Salon