Operating systems

I. The processes are assumed to arrive in order P1, P2, P3, P4. P 5 all at time 0 Draw four charts that illustrate the execution of these using each of the following scheduling algorithms (FCFS, SJF, non-preemptive priority (a larger number means a higher priority), and Round Robin with time slice of 2. processes Ps write linux commands to accomplish the following: i.create a directory xyz under your home directory 2 copy a file thread.cpp from your Downloads directory to the tmp directory under the root directory a terminate a process with an PID of 4455 2 Explain the following terms/questions A file has a permission string of"drwxrwxr-x", what does it mean System call FCFS scheduling Average waiting time 3. explain process management cycle from process creation to process termination. 4. explain semaphore, the wait function, and the signal0 function. Write the semaphore code for producer and consummer