Can you please create a tutorial of WordPress core functions?

It's like explaining each and every file used in WordPress (wp-admin, wp-content, wp-includes) and parent WordPress folder files like index.php, wp-login.php and more.

As, a developer i want to know more in-depth view of how this CMS is working. I'm not find a better tutorial in net. So, only i suggest you to do that. :)

Thanks Boston!