Use this tag for questions about programming with or on Qubes OS. Questions about installing or configuring the OS and their devices connected to it should be asked on Super User.
Qubes OS is different than other operating systems starting right from the kernel. Operating systems such as Windows, Linux, BSD, and OSX are based upon a monolithic kernel, this possess a huge security problem as the monolithic kernel contains over ten million lines of code to operate, and to make the issues worse, most of the code comes from untrusted resources.