C# is an object-oriented programming language developed by Microsoft Corporation.C# source code—as well as those of other .NET languages—is compiled into an intermediate byte code called MSIL (Microsoft Intermediate Language).C# is primarily drown from the C, C++, and Java programming languages with some features of Microsoft's Visual Basic.

C# goals context of Design

• C# is planned to be a simple, modern, general-purpose, object-oriented programming language.

• The language and implementations must give software engineering principles.
• The language is intended for use in developing software components in distributed environments.
• Source code portability is very important.
• Support for internationalization is very important.
• C# is intended to be suitable for writing applications for both hosted and embedded systems, with border ranging.
• Although C# applications are intended to be economical with regard to memory and processing power requirements, but not with C or assembly language.