new to this.. and don't even know where to start ...
hoping someone can help me because I'm struggling

Angelma, not trying to be overly smartmouth, but the first place to learn is to read the rules and guidelines as listed just above your question. Don't try to throw everything in one post...you will be so confused and still unable to understand the differences when you have 8 or ten answers all in the same group of pictures. It is preferable to group a few very similar boards, and ask about each one or each small group in different posts. Then you can begin separating the boards into each pile/category as you learn them and see what they have in common. Now to id a couple of the pics. First one is gold finger memory. Second is no pin CPU

Like Meowpher said, start with this post. viewtopic.php?f=4&t=19156

Then take a long look at this one. viewtopic.php?f=3&t=21765

You have lots of boards that are relatively easy to identify after reading that second link. Picture 4 & 5 on your first post are all motherboards, just different types. Picture 2 might have 2 CPUs with pins, but it's a little blurry so hard to tell. Picture 6, 7, & 8 all the boards have gold fingers, but there are two that will grade higher. Picture 7 board 1 looks like a gold cap chip board, and the others can (maybe) go into high grade telcom class.