Real Time Operating System

Chapter-1: Exercise Solution 1.1 In a multi architectural planming and time-sharing environment, several(prenominal) users distribute the organisation simultaneously. This situation can result in various security problems. a. What are both such problems? b. locoweed we ensure the said(prenominal) degree of security in a time-shared car as in a dedicated machine? beg off your answer. Answer: a. thieving or copying ones programs or selective information; using system resources ( processor, retentiveness, discus space, peripherals) without proper accounting. b. Probably not, since any resistance scheme devised by humans can inevitably be broken by a human, and the more complex the scheme, the more catchy it is to relish confident of its correct implementation. 1.2 The issue of resource utilization shows up in different forms in different types of operating systems. disputation what resources must be managed care seriousy in the following settings: a. m ainframe ready reckoner or minicomputer systems b. Workstations connected to servers c. Handheld computers Answer: a. Mainframes: memory and CPU resources, storage, network bandwidth. b. Workstations: memory and CPU resouces c. Handheld computers: power consumption, memory resources. 1.3 down the stairs what circumstances would a user be better eat up using a timesharing system rather than a PC or single-user workstation?

Answer: When at that place are few opposite users, the caper is large, and the hardware is fast, timesharingmakes sense. The near power of the system can be brought to bear on the users problem. The problemcan be resolved faster than on a personal comp uter. Another faux pas occurs when lots of ! other users need resources at the same time. A personal computer is best when the job is small enough to be inclined reasonably on it and when performance is sufficient to execute the program to the users satisfaction. 1.4 Which of the functionalities listed below 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 want to get a full essay, order it on our website: OrderEssay.net

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