how to create your own game system operating system

Where can I read about setting up a multitasking environment? (ie., having two graphical-like command lines running side-by-side). What is a graphical O/S built on? Like, how would I do something like, a command line, with a font, and a picture at the top? How can I make it either a command line O/S, and a graphical one? What will I undoubtedly run into that will confuse me? How do I manage memory without the help of an operating system? Do I just use whatever addresses I want? No initialization necessary? What drivers do I need, and can you suggest any references to building those?Īfter the booting sequence-then what? How do I get into protected mode etc. How do I put the code onto the computer? Is it best to do it with a floppy disk? Can most computers do it from a USB stick?

I want to learn how to write my own bootloader (I've found lots of resources about this, but for completeness, please still add some good ones), my own USB driver (if that's necessary), a CD driver (if that's necessary), etc. I want to set up one of my older desktops with a monitor, keyboard and mouse, and start working on a blank hard drive.

This is a future project, as I'm busy with some other things at the moment and don't have the time immediately, but I figured I would ask it now, so maybe I could get lots of answers to this, and it could build up and be a useful resource for this kind of approach (everything else I have seen involved building off of minix, using an existing bootloader, building it in a virtual booting program thing, etc). I want to write everything myself, in Assembly, C, and (some) C++. I know it will be horrible, and buggy, and won't work, but that's fine. I don't expect to build the next linux, or windows.

This might be in vain, as I know writing an operating system is unbearably complicated (especially by oneself).

How to create your own game system operating system