Real Time Operating System

Chapter-1: Exercise Solution 1.1 In a multi scheduleming and time-sharing environment, several users take the constitution simultaneously. This situation can matter in various security problems. a. What are both such problems? b. Can we ensure the said(prenominal) degree of security in a time-shared machine as in a dedicated machine? rationalise your answer. reply: a. thieving or copying ones programs or selective randomness; utilize schema resources (CPU, memory, disk space, peripherals) without halal accounting. b. Probably not, since any metro scheme devised by macrocosm can inevitably be broken by a human, and the much complex the scheme, the more slick it is to feel confident of its correct implementation. 1.2 The take of resource utilization shows up in different forms in different types of operating systems. List what resources mustiness be managed care unspoiledy in the following settings: a. Mainframe or minicomputer systems b. Workstations connected to servers c. handheld computers state: a. Mainframes: memory and CPU resources, storage, communicate bandwidth. b. Workstations: memory and CPU resouces c. Handheld computers: power consumption, memory resources. 1.3 deplete the stairs what circumstances would a user be burst eat up using a timesharing system rather than a PC or single-user workstation?

Answer: When there are fewer other users, the caper is large, and the computer hardware is fast, timesharingmakes sense. The full power of the system can be brought to weary on the users problem. The problemcan be resolved express than on a ad hominem computer. Another faux pas occurs when separate of other users need resources at the same time. A personalized computer is best when the bank line is small enough to be given up reasonably on it and when performance is sufficient to execute the program to the users satisfaction. 1.4 Which of the functionalities listed under need to be back up by the operating system for the following two settings: (a) handheld devices and (b) real-time systems. a. Batch programming...If you motivation to get a full essay, order it on our website: Ordercustompaper.com

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