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First write two simple programs producer M and consumer M as two programs to be compounded. When separately executed, the producer will just print M random alphanumeric characters to screen one-by-one (one character at a time), and consumer will just read M characters from standard input (keyboard) one-by-one. Do timing experiments to compare normal mode execution time with tapped mode execution time. That means, for a compound command, find out how long it takes to finish a compound command (in 3 this case producer M | consumer M) in normal mode and in tapped mode. Also analyze the effect of the N parameter of your shell. Do experiments for this purpose as well. Use various M values Plot your results. Interpret the results and try to draw conclusions. You can use the gettimeofday function to measure the time in your program.