1.1. Application or component; processes and calls ADO.NET functions to submit SQL statements and retrieve results.
1.2. DataSet; as in-memory cache of data which functions like a disconnected XML data cache.
1.3. DataReader; which provides a direct, read-only SQL interface to the backend.
2. Describe
2.1. ADO.NET is a data access technology from the Microsoft .NET Framework that provides communication between relational and non-relational systems through a common set of components.
2.2. ADO.NET is a set of computer software components that programmers can use to access data and data services from a database.
2.3. It is a part of the base class library that is included with the Microsoft .NET Framework.
