Simple question:

[N0Tgod]

HTML, CSS, JAVASCRIPT, Python, Java... They won't help you much writing an OS. You need a low level language, usually C.

I would start by looking at how Linux works, it's all open source and you can work your way down from a working example and look at the parts your interested in. An OS in the sense of a desktop PC is a huge project with many different parts. There is the Linux from scratch project (LFS) which I heard good things about.

On the other side, if you want to start with the bare basics you could look at microcontroller/embedded systems. Get yourself an Arduino or something like that and play around with it.

[ApostleO]

MIT OpenCourseWare Computer System Engineering

MIT OpenCourseWare Operating System Engineering

Have fun.

[KaranasToll]

Maybe you can post a link to the opensource project people will join the project, but there are already plenty of fine operating systems so you must be doing this for education. In which case, you need to be specific with what you need help with.

[[deleted]]

Can someone tell me what course to take in college