The link you provided has labels showing what they mean along with a chart that explains it further. Not sure what you are asking since all the info is in the link you provided.
I was referring to the socket type(2,4,6,8), I was under the impression that sockets names look like LGA 1155, not a single digit, so is it the number of sockets on the board?
The CPU socket ID does not have to match the real socket name. When you want a Cheeseburger, Fries, and soda do you actually say that or just say "#1 combo"? Same thing. There must be some other chart that shows that socket number to the actual socket type.