Remix OS (short for Remix Operating System) is an Android OS based on Android-x86 Open Source Project (AOSP) through deep customization and secondary development. It was started by 3 ex-Google engineers from China, written in C (core), C++, Java (UI). Remix OS for PC allows users to run Android mobile apps/games on any Intel-based PC, and mainly uses tablet PC, all-in-one machine, smart display as its carrier at present.
MinGW (formerly mingw32, short for Minimalist GNU for Window) is a minimalist free, open source and the most important, pretty darned good compiler for Windows application development using C/C++.
For beginners using Windows who are interested in the C/C++ language (anyway, you need to compile your C/C++ programs) or Linux embedded system development, the big headache is switching back and forth between Windows & Linux. Even you have to continuously reboot system in order to achieve the purpose, very troublesome. Cygwin just solved this problem.