SiteCollection
Site Collection is collection of sharepoint site. i.e. Sharepoint site collection is logical grouping of multiple sharepoint site.
A site collection is a group of Web sites that have the same owner and share administration settings, for example, permissions.
When you create a site collection, a top-level site is automatically created in the site collection. You can then create one or more subsites below the top-level site.
A site collection must exist within a Web application. You can create a site collection based on an existing Web application, or you can create a Web application and then create a site collection within that application.
Site
- Site is a collection of web pages which is used to store information in organised way.
- Site stores list of documents, discussion, events, task and many other types of information.
- Site provides controlled access to share information among user. i.e. Only Authorize users are allowed to access shared information.