Ubuntu is an open-source, community developed, linux-based operating system. It is an outgrowth of the Open Source movement which suggests that the community as a whole can build itself some of the tools that we have had to buy from others in the past.
I bought a modest little compaq laptop that came with windows vista. I dutifully, and patiently, made back-up discs for that operating system. Then I downloaded ubuntu and replaced vista with ubuntu. It felt liberating.
I owe thanks, by the way, to my friend and colleague Charles Wilmire who has shared advice and experience and some hands-on tinker-time to help me take this step.
Now I am working through configuration and settings based on my preferences and my needs. I don't want anything on here that I am not going to need to do what it is that I want to do.
This should be fun.