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What is difference between ADO.NET and LINQ to SQL?

What is difference between ADO.NET and LINQ to SQL?
Ans. There are following differences between ADO.NET and Entity Framework:
ADO.NET  and   LINQ to SQL
It is a part of .NET Framework since .NET Framework
1.0
It is a part of .NET Framework since .NET Framework
3.5
SqlConnection/OleDbConnection is used for database
connectivity.
We can use context for database connectivity.
Difficult to debug and cause syntax errors at run-time. Easy to debug and cause syntax errors at compile-time.
It has full type checking at run-time and no
IntelliSense support in Visual Studio, since it used the
T-SQL to query the database.
It has full type checking at compile-time and
IntelliSense support in Visual Studio, since it used the
.NET Framework languages like C# and VB.
It used T-SQL to query the data to query the database
and some other syntax for querying the other data
source.
It used LINQ to query the data which provides the
uniform programming model (means common query
syntax) to query the various data sources
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