Consider the following set of processes, with the length of the cpu burst given in milliseconds: process burst time priority p1 2 2 p2 1 1 p3 8 4 p4 4 2 p5 5 3 the processes are assumed to have arrived in the order p1, p2, p3, p4, p5, all at time 0.

a. draw four gantt charts that illustrate the execution of these processes using the following scheduling algorithms: fcfs, sjf, nonpreemptive priority (a larger priority number implies a higher priority), and rr (quantum = 2).
b. what is the turnaround time of each process for each of the scheduling algorithms in part a?
c. what is the waiting time of each process for each of these scheduling algorithms?
d. which of the algorithms results in the minimum average waiting time (over all processes)

A911 dispatcher is the sole sender of messages to all police officers. while on patrol, officers communicate with the dispatcher who, in turn, relays messages to other officers. the officers do not communicate directly with one another. this illustrates a network.

Consider the following function main: int main() { int alpha[20]; int beta[20]; int matrix[10][4]; . . } a. write the definition of the function inputarray that prompts the user to input 20 numbers and stores the numbers into alpha. b. write the definition of the function doublearray that initializes the elements of beta to two times the corresponding elements in alpha. make sure that you prevent the function from modifying the elements of alpha. c. write the definition of the function copyalphabeta that stores alpha into the first five rows of matrix and beta into the last five rows of matrix. make sure that you prevent the function from modifying the elements of alpha and beta. d. write the definition of the function printarray that prints any onedimensional array of type int. print 15 elements per line. e. write a c11 program that tests the function main and the functions discussed in parts a through d. (add additional functions, such as printing a two-dimensional array, as needed.)

Why were most movies from the late 1890s until the early 1930s only filmed in black and white? there were only a few people who could afford the technology to produce color motion pictures back then. audiences did not want color motion pictures until later. the film used to make color motion pictures often overheated, which was a safety hazard, so it was generally not allowed. color films had to be hand-colored, frame by frame.