Creating product page in wordpress

First: I have very little knowledge in WordPress, but i'm doing fine with frontend, PHP and mySQL.

What I have, is a list of products, each product belongs to a category and has:

1. name
2. picture
3. description
4. list of specifications
5. list of links

I want to create posts or pages(?) for these products (no need to .

Where and how do I begin to create a "system" that will add this ability to my wordpress them?
My theme is an empty one, the most basic them.

I don't ask for the code of course, but i have no idea where to start? What terms to google? How to approach it?

thanks

via Chebli Mohamed