Question: i need full answer for the second question? please can u answer me quickly e upp 1. What is operating system? What are the functions

i need full answer for the second question? please can u answer me quickly

e upp 1. What is operating system? What are the functions of operating system? (15) 2. Try to use semaphore to implement the following precedence graph: (15) 34 s2 4 s1 SS S6 *s3 3. Compare process and thread from the perspective of schedule, concurrency, resource and system cost (20) Show transcribed image text 1. What is operating system? What are the functions of operating system? (15) 2. Try to use semaphore to imple following precedence graph: (15) s4 52 55 s1 56 *s3 3. Compare process and thread from the perspective of sche Free virus W e upp 1. What is operating system? What are the functions of operating system? (15) 2. Try to use semaphore to implement the following precedence graph: (15) 34 s2 4 s1 SS S6 *s3 3. Compare process and thread from the perspective of schedule, concurrency, resource and system cost (20) Show transcribed image text 1. What is operating system? What are the functions of operating system? (15) 2. Try to use semaphore to imple following precedence graph: (15) s4 52 55 s1 56 *s3 3. Compare process and thread from the perspective of sche Free virus W

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