Operating System Course

I have taken "Operating Systems" at Pace University in White Plains NY. It is very complicated but by the end of the course (12 classes) I was able to create a working DOS. It was written in C-Language. It technically was not a standalone OS since it required DOS itself to run. Keep in mind when Windows first appeared in the 80's it also need DOS in the background to be able to function. College courses are expensive but its nice to have a professor and other students you can rely on for help. You may also try auditing the course in which you don't get College credit but get to sit in on all the classes and get the same information. --Stuart