.NET is a Software framework that was developed by Microsoft and its runs primarily on Microsoft Windows. It provides language interoperability across all programming languages and include a large class library that called Framework Class. FCL provides data access, cryphotography, user interface, database connectivity, web application development, network communications and numeric algorithms. By combining their source codes with other libraries and .NET framework, programmers produce software's. Visual Studio is also an integrated development environment largely for .NET software is produced by Microsoft. Family of .NET platforms targeting embedded devices, Web browser Plug-ins, mobile computing and alternative operating system is led by .NET Framework. You can use multiple editors, languages, and libraries to build for web, desktop, gaming, mobile, and lot with .NET.