Linux is a tried-and-true, open-source operating system released in 1991 for computers, but its use has expanded to underpin systems for cars, phones, web servers and, more recently, networking gear.

However, Linux may not be the right operating system for every user. Windows Of the Windows operating systems, Windows 7 has been praised as being the most compatible with low-resource computers.

Android phones, smart TVs and even a smart refrigerator use Linux. The operating system is also widely used in other areas, like in 97 percent of the world’s top 500 supercomputers.

If you don't know what the Linux desktop operating system is, or if you're new to it, Jack Wallen's quick explainer will get you up to speed.

The Linux operating system boasts stronger security, bundled apps, and better performance on old hardware. Not sure how to switch? We've got you covered.

Sales of the open-source operating system dipped in 2001 but are expected to increase through 2006, an IDC study finds. Windows, however, still rules the roost.