MVC- Difference between View and View Model?

MVC- Difference between View and View Model?
http://www.itorian.com/2013/06/what-is-model-and-viewmodel-in-mvc.html
http://www.dotnet-tricks.com/Tutorial/mvc/QHQT270712-Understanding-ViewModel-in-ASP.NET-MVC.html
http://stackoverflow.com/questions/11212484/difference-between-models-and-view-models
MVC- Difference between DTO and View Model?
http://stackoverflow.com/questions/1431445/what-is-the-difference-between-a-view-model-and-a-data-transfer-object

What is the Difference Between a DTO and a POCO?
http://rlacovara.blogspot.in/2009/03/what-is-difference-between-dto-and-poco.html
Datacontract in MVC
http://philmunro.wordpress.com/2012/01/03/keeping-domain-models-and-view-models-separate-with-asp-net-mvc-and-wcf/
http://www.c-sharpcorner.com/UploadFile/dacca2/understand-wcf-part-10-attributes-of-datacontract-and-data/
1.)Repository pattern
2.)Unit of work
3.)Dependency Injection
4.)AutoMapper
5.)DTO