At Make Use Of, we cover Linux quite a bit as the “alternative” to Windows and Mac OS X.However, those aren’t the only three operating systems out there — there’s also the BSD family of Unix-like operating systems, which are technically speaking different from Linux.Even on the desktop, both operating systems will look similar as they both typically run the same desktop environments, including but not limited to GNOME and KDE.Firefox, GIMP, and many other popular open source applications also run on both systems.Free BSD has close roots to Unix systems of the past, while Linux was created from scratch as an open Unix-like alternative.This association informs decisions on the design of the systems, how components should interoperate, and the general expectations for what the system should look like and accomplish.
Unfortunately, many Linux advocates ignore them and never write articles to counter them or their own BSD vs Linux articles.
GNU/Linux goes farther with the licensing of their source code under the GPL which maintains the freedom to view, study and modify the source code and its derivatives.
It also protects user and developers from DRMs or any malicious persons or companies who try to sue them over the software.
Code contribution Due to it being licensed under the GPL, GNU/Linux gets a lot of high quality code contributions back from many developers and companies using Linux.
As a result, Linux has grown and improved continuously.
The experience has been eye-opening, especially since I consider myself an "old-school" Linux admin, and I've felt out of place with the latest changes on the system administration.