I am as confused myself as, all I could find is alphanumeric codings and more codings with no proper explanation for someone like myself to have a head start in learning what these could be all about.

Or am in in the wrong place, perhaps am not just about what the basics might be and this space is just for a specific few as the responses show.

Help me understand. Can these be broken down,,,
Like, what is what and what is that,
Before diving straight to its derivations is come about?
That would do a lot of good for someone with the zeal to learn. I get it that there are pros her but, am obviously not and I wish to follow through.