If you do get discouraged along the way, refresh yourself with the content of this book. In time, and with enough dedication, you will find yourself among the elite few who have contributed to a working operating system. Prepare yourself for occasional bouts of confusion, discouragement, and for some of us.temporary insanity. You have been fairly warned of the hard work ahead, but if you are still interested then proceed forward into the realm of the operating system programmer.
The truth is, operating system development is truly unparalleled since it requires the utmost amount of patience and careful code design, and it returns very little to no "instant gratification" you get from the development of things like games and web-based scripting. Hopefully the basic fact that operating system development is a complicated and ongoing process does not discourage you. 5 Choosing your development environment.You have ultimate control, and the sky's the limit! Once you get your initial system up and running (and you do this by finding appropriate tutorials), you choose the path you want to take next. There is no absolute path you have to take when creating an OS. Your handwritten system is able to boot, performs magic against the hardware, and gives the user a user interface and programs to play with. And after some time you are able to look back and see all of the things you've created from scratch. There is nothing like the feeling of accomplishment when you, finally, after hours of struggling, solve the problem. Feel discouraged yet? Don't fear! Because all of these things are also the things that makes OS programming fun and entertaining. Your mind has to be able to wrap itself around abstract theory and hold a myriad of thoughts. You need to understand how hardware works and be able to read and write the complex assembly language as well as a higher-level language (such as C, C++, or Pascal). Composing an operating system requires a lot of knowledge about several complex areas within computer science. First of all, developing an operating system is probably one of the most challenging things you can do on a computer (next to killing the final boss in Doom on Nightmare difficulty level).
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