Wow I remember some of this class from my OS course 10 years after this was written. We were just told about mutexes, but I never knew that it stood for Mutual

Wow I remember some of this class from my OS course 10 years after this was written. We were just told about mutexes, but I never knew that it stood for Mutual Exclusion. (I did correctly intuit that a mutex was simply a specific use case of semaphore though so I'm happy and managed to pass the course in the end :D)