Via Nuget Package which is included in the .Net Framework
Via Nuget Package included in the EntityFramework.dll
In the first case, .Net Framework 4.0/4.5 is included in EF Core API. By using this API, Entity Framework can be used.
In the second case, the separate EntityFramework.dll will be introduced to use entity framework. This is not dependent on the .Net Framework.
Softwares
The following softwares must be installed in system to work with entity framework.
Visual Studio 2012/2013
SQL Server 2008/2012
Steps
Follow the below steps to know the setup for Entity Framework by using the first case.
Create an ASP.Net web Application
Now, See the Solution Explorer ->Right click on the Application Name and then select Manage Nuget Packages as shown in the below figure.
Then, the new window will be open as shown in the below figure.
Click on the online which is in left side. Click to install the Entity Framework as shown in the above figure.
Then, Entity Framework in the References (which is in the Solution Explorer) can be seen as shown in the below figure.