Microsoft R Open (MRO) is the new name of Revolution R Open. It is the enhanced distribution of R from Microsoft.
R is a language for data analysts. R is easy to learn, and a very natural and expressive one for data analysis.
Functionality of R lives in packages. A package is a collection of R functions, data, and compiled code. R is extensible. Developers can easily extend R by adding their own packages and functions.
Learn more about What R Is.
Visual Studio 2015 is one of the best IDE out there for software developers. Good news for R developers: The R Tools for Visual Studio (RTVS) are on the way. Here is a sneak peek.