Experiment Date should be correct on page 1 and page 2

Expt 1-1024; Expt 2 - 1031; Expt 3 -1107; Expt 4 -1114

Type the code but not paste a picture with code

Explain the code and analyze the result

E.g., for experiment 1/2/4: explain the function and parameters of relevant system calls, such as fork(), msgsend(), read().for experiment 3: the basic idea of the algorithm

E.g., for experiment 1: how many processes are created; Expt 2: which process receives which message from which process (also including the analysis on the message content); Expt 3: why is a certain page selected, Expt 4: check if the commands in the program works (go back to the shell to run ls or cat)

Suppose a computer runs at least two of following processes: A for movie watching, B for file downloading, C for word editing, D for compiling.

Describe how the operating system manage the relevant resources for these processes in your own words.

Elaborate it from the perspectives on different hardware or software resource management for all processes

Or elaborate all the relevant resource management for one single process and then explain extra actions when more processes are involved