But my gut feel for this is that Unix is indeed the world's most successful operating system ever. 900 million concurrent users? I don't think even Windows has managed that.

The Unix operating system is one of computing's most significant technologies, providing the framework that the familiar Linux and Mac OS X operating systems were developed on.

If you're new to the UNIX operating system, especially if you're familiar with Windows, you'll find that the file access control mechanisms might not be exactly what you expect.

On "1-2-3-4-5-6-7-8-9-0 Day," tech lovers all over the world celebrated the moment when the clocks in the popular Unix computer operating system struck that exact stream of numbers. But on Feb. 13 ...

I know this.”, the Unix operating system (trademarked as UNIX) originated at Bell Labs where it initially was only intended for internal use to make writing and running code for systems like the ...