MVC stands for "Model View Controller".  Basically this means that an application is separated into three main components, the model, the view, and the controller.

Microsoft's ASP.NET MVC framework provides an alternative to ASP.NET Web Forms.

Model objects are the parts of the application that implement the logic for the application s data domain.  

Views are the components that display the application's user interface (UI).

Controllers are the components that handle user interaction, work with the model, and ultimately select a view to render that displays UI.