Because OS will give you a better feel for how threading works, for how file systems work. Just because you (probably) wont be working on OS source code, doesn'

Because OS will give you a better feel for how threading works, for how file systems work. Just because you (probably) wont be working on OS source code, doesn't mean the behind the scenes knowledge wont be beneficial because you will be getting a better grasp of Computer Science as a whole. I have friends who work on Android apps, and often times they have to dig into the Android source code to see what the hell is going on. The more sense you can make out of the code, the easier it will be to find what you are looking for. Also, it is considered a weeding out course in many schools. It separates those who are willing to dig deeper into the world of CS and those who will either quit the major or become a desk drone. Signed, Your CS112 TA