.NET Framework -

• It is the original implementation of .NET .
• It is a framework to develop software applications.
• It is very portable.
• It is designed and developed by Microsoft.
• It's first version was released in the year 2002.
• It is used to develop applications for web, windows, smart-phones etc.
• It provides a broad range of functionalities and support.
• It contains a large number of class libraries known as Framework Class Library (FCL).
• It also supports various programming languages such as visual basic, C#, Java etc. So it's very easy for developers to choose one.
• It provides various services like memory management, networking, security, memory management, and type-safety.
• All .NET applications run under a common execution environment, called the Common Language Runtime.