What makes a computer operate

It also allows you to communicate with the computer without knowing how to speak the computer's language. Without an operating system, a computer is useless. Looking for the old version of this video? You can still view it here. Your computer's operating system OS manages all of the software and hardware on the computer. Most of the time, there are several different computer programs running at the same time, and they all need to access your computer's central processing unit CPU , memory , and storage.

The operating system coordinates all of this to make sure each program gets what it needs. Operating systems usually come pre-loaded on any computer you buy.

Most people use the operating system that comes with their computer, but it's possible to upgrade or even change operating systems. The three most common operating systems for personal computers are Microsoft Windows , macOS , and Linux. Modern operating systems use a graphical user interface , or GUI pronounced gooey. A GUI lets you use your mouse to click icons , buttons , and menus , and everything is clearly displayed on the screen using a combination of graphics and text.

How Does a Computer Work? Here are the main components of a computer: CPU — or Central Processing Unit is considered the most important component in a computer and for good reason. It handles most operations that make it function, by processing instructions and giving signals out to other components.

Everything stored on RAM is lost if the computer is shut off. Depending on the applications you use, there is typically a maximum limit of RAM you will need for the computer to function properly. Although they are still being used, we have much faster types of storage devices such as solid state drives SSD that are also more reliable. The Motherboard acts as the home for all other components, allows them to communicate with each other and gives them power in order to function.

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