npm is the official package manager of Node.JS, which is a version of JavaScript that runs on local hardware instead of a web browser. To get started, install node.js. To do this, you need to use your operating system's package manager, but its install instrucions are [*on its website*](https://nodejs.org/). 

Once you are done, you can install an NPM package with the command:
`npm install <package name>`

This installs the specified package. 
In terms of packages, npm is mainly used for dwnloading Node.Js libraries that extend its funcionality, but some programs are available as well. In general, unless you're making software in Node.Js, you do not need to interact with npm.
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