Like all good operating systems, you can have multiple user accounts on one machine. ... Let's stick with our olivia example. To give that user a login/sudo password, run the command: ...

Linux, renowned for its robustness and security, is a powerful multi-user operating system that allows multiple people to interact with the same system resources without interfering with each other.

We start with the understanding that OS X is designed as a multi-user operating system—one where files stored in one account are not easily accessible in another. For example, ...