HOW SHAREPOINT STORES DATA ?

One of the most important benefits of using SharePoint as an application platform is the ability to use its storagecontainers for storing application data, especially in the form of a list ‐ which is the fundamental data structure in SharePoint.
There are two kinds storage containers inside SharePoint: 1) Administration Store ‐ This store contains data relatedto site administration, containing information such as server farm and node setup, etc. ; and 2) Content Store ‐ Thisstore contains data related to site hierarchy as well as the content associated with the site, including user data ,layout, menu items, etc. The content database is where most application data will tend to reside. The use ofSharePoint storage containers is centered on the notion of list. A list is a collection of items or rows and can be usedto store application data.