C# is a modern, general-purpose, object-oriented programming language developed by Microsoft and approved by Ecma and ISO.
C# was developed by Anders Hejlsberg and his team during the development of .Net Framework.
C# is designed for Common Language Infrastructure (CLI), which consists of the executable code and runtime environment that allows use of various high-level languages to be used on different computer platforms and architectures.
The following reasons make C# a widely used professional language:
Modern, general-purpose programming language
Easy to learn.
It produces efficient programs.
It can be compiled on a variety of computer platforms.
Part of .Net Framework.
Although C# constructs closely follow traditional high-level languages C and C++ and being an object-oriented programming language, it has strong resemblance with Java, it has numerous strong programming features that make it endearing to multitude of programmers worldwide.
Following is the list of few important features:
Automatic Garbage Collection
Properties and Events
Delegates and Events Management
LINQ and Lambda Expressions
Integration with Windows