Because of its Unix heritage, Mac OS X is a true multi-user operating system from the ground up. Yet some people have used Mac OS X for many months without fully realizing what this means -- as the ...

Many times there will be odd names listed in the permissions field for files on their systems, and people have wondered about them and what they mean. Topher, an avid Mac user for the past 15 years, ...

Ubuntu, like other Linux distributions, restricts access to files and system settings by default. Each user account has read and write access to its own files and read access to some system files.

It's the day before Google's big annual hardware event, and the company is busy weathering some major bad press. Google+ for consumers is shutting down, and far from being a graceful death, its demise ...