![]() Primitive computers can run without an operating system. Can you run a computer without an operating system? When you save your changes, Word works with your operating system to save your document file. Word does request the operating system fetch files which Word then reads and lets you change. It does not connect to the internet, for example, or fetch data from computer files. Microsoft Word is a word processing application that makes it easy to create documents. The OS takes orders from your applications, executes the orders, and returns any messages that result. ![]() Your OS provides a platform, really a set of services and capabilities, used by Word and other software application. How do operating systems differ from software applications like Microsoft Word? Other critical tasks managed by your OS include connecting to the internet or other computers, managing memory used by your software applications, and reading and writing files. If you use an email software program and want to print an email, for example, your computer operating system communicates with your software and a printer to print the email. Once your computer checks key parts of your hardware work, the operating system is started so your other software has a platform to work on. The process of running software to check key parts of your computer is called booting up. Your computer hardware must run software to check key parts of the hardware are present and working before the operating system is run. When you press a button to start your computer, however, the OS is not the first software to run. ![]() Common operating systems are Windows, Mac OSX, and Linux. But what are they and how do they work?Īlmost all computers have an operating system, also called an OS, to act as a stage on which software applications are run. Operating system software is a key part of all computers. ![]()
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