I'm a long-time user of free/open source software, and write various things for both fun and profit. I don't take myself all that seriously and I do all of my own stunts.
You can find me at these fine establishments on the web: Open Source Musings, The Monday Kickoff, Weekly Musings. and The Plain Text Project.
Authored Comments
In Girish's defence, this article isn't an introduction to DevOps. And I don't think it was meant to be one. Anyway, a history (of sorts) was published on Opensource.com in 2017, and the Command Line Heroes podcast dedicated an episode to what DevOps is and where it came from.
Per the third paragraph below the poll:
Now, here's where it gets difficult. We cannot list every distribution! There are just way, way too many out there, and almost no matter what method we pick, we're going to leave out somebody's favorite.