![]() The OS also handles multi-tasking, allocating hardware resources among multiple running programs. The application that's printing doesn't have to care about what printer you have or understand how it works. The operating system sends the instructions to the printer, using the printer's drivers to send the correct signals. For example, when an application wants to print something, it hands that task off to the operating system. The operating system sits in between the applications you run and the hardware, using the hardware drivers as the interface between the two. Operating systems also include a lot of software-things like common system services, libraries, and application programming interfaces (APIs) that developers can use to write programs that run on the operating system. Operating systems use device drivers written by hardware creators to communicate with their devices. ![]() In other words, an operating system handles input and output devices. They handle everything from your keyboard and mice to the Wi-Fi radio, storage devices, and display. Operating systems communicate with the device's hardware. An operating system is the core set of software on a device that keeps everything together.
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