difference between ADO.NET and ENTITYFRAMEWORK and LINQ

Go through below links.

http://www.c-sharpcorner.com/blogs/entity-framework-vs-linq-to-sql1

http://stackoverflow.com/questions/3293995/what-is-the-difference-between-entity-framework-and-linq-to-sql-by-net-4-0

https://blogs.msdn.microsoft.com/wriju/2009/03/07/choosing-between-ado-net-entity-framework-and-linq-to-sql/