You should never have to work with the root user account on Linux, especially on a desktop installation. There can be occasions when you need to use root on a server. If you must use root, do so with ...
Logging in as the root user should never be done on Linux. Using the root account could lead to disaster. Sudo is the preferred method of gaining elevated privileges. When I first started using Linux ...
Even though the root account is "disabled" by default in OS X, you will still see many system processes running under this account when you open Activity Monitor, which might be confusing to some ...