What if you could add another arm to your body so you can carry more, or give yourself another pair of legs so you can move in ways previously not possible? In the world of technology, a plug-in works the same way.

A plug-in is a software component that’s added to another computer program to give it new functions. An example of a plug-in is a virus scanner used in a Web browser in order to keep an eye on malicious software. By itself, the browser is not able to stop malware. But with the plug-in, it is secure and protected.

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