Chapter-1: Exercise Solution 1.1 In a multiprogramming and time-sharing environment‚ several users share the system simultaneously. This situation can result in various security problems. a. What are two such problems? b. Can we ensure the same degree of security in a time-shared machine as in a dedicated machine? Explain your answer. Answer: a. Stealing or copying one’s programs or data; using system resources (CPU‚ memory‚ disk space‚ peripherals) without proper accounting. b. Probably not‚ since
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Network Operating systems Like Linux‚ Windows 2000 and Distributed operating system Amoeba. Group Members : Yedukondalu Madhumanchi (M00295179) Saroop kumar reddy Chidirala(M00333357) Date of Submission : 25-Feb-2011 Campus : Hendon School of Computing Science Dr G E Mapp Middlesex University List of Contents S.NO Content Page Number 1. Abstract
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Read Source 1‚ the online travel article called Rafting on the Grand Canyon by Elisabeth Hyde. 1) What do you learn from Elisabeth Hyde’s article about where she has been and what she has been doing? From the article‚ we learn that Elisabeth Hyde went rafting on a ’13 day‚ 225-mile trip down the Colorado River through the Grand Canyon.’ She describes the trip as a ‘Disneyland’ like experience with ’a white-knuckle‚ roller-coaster ride’. Hyde also comments on how she found it quite scary but ‘exhilarating’
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Answer Scheme for Test 2 Operating System 1. a) What is synchronization? (1m) - Synchronization is an act of ensuring that independent processes/threads begin to execute a designated block of code at the same time b) How does a race condition happen? (2m) - Incorrect timing in accessing same shared resource c) Explain TWO possible solutions of handling critical section?(2m) - Disabling interrupt prevents processes/threads to be in the critical section at the same logical time - Software solution
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Performance Segment has Reliability‚ Mean Time before Failure (MTBF) as the most important customer buying criteria at 43% and Ideal Positioning at 29%. For Round 0 the Promotional Budget for all companies in the segment is $800 with Customer Awareness of 49%. The Sales Budget for all companies is $800 with Customer Accessibility of 48% and the December Customer Survey of 21. We are still on page 7 of the Capstone Courier‚ High End Segment Analysis‚ for the end of Round 0. We now review Ideal
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What is the need of Operating System in a Computer? Explain the facilities provided by an operating system to its users. Also explain the services that are offered by the Operating System Ans: An operating system is an essential software component of a computer system. The basic objectives of an operating system are to make the computer system convenient to use and to utilize computer hardware in an efficient manner. We can define an operating system as a large collection of software‚ which manages
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Installing/Upgrading an Operating System Installing/upgrading an operating system or OS‚ is a rather simple procedure; however‚ any mistakes can have a profound effect on the computer’s ability to operate. Typically‚ most users do not have to deal with their computer’s OS as pre-built computers will have the OS already installed and rarely find the need or opportunity to upgrade it. There are a few circumstances that require a fresh install or upgrade for the OS such as installing newer
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Memory management in multiple operating systems An operating system is responsible for assigning memory to processes so that processes can be executed. Broadly‚ this responsibility is defined as memory management‚ and operating systems handle memory management differently. Any operating system must do two things in order to handle memory effectively. First‚ an operating system must be able to allocate and free physical memory. Second‚ an operating system must have techniques in place to keep
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Operating Leverage Operating leverage can be measured if the breakdown of fixed cost and variable cost in a company’s operating structure is known. Operating leverage is normally based upon operating income to avoid muddying the signal with financial leverage or taxes. Computing operating leverage would be easy if the proportion of fixed and variable costs could be known with certainty. Consider a stylized example: Operating leverage is computed by dividing the contribution margin (revenues
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easier‚ usually select computers that will run under Microsoft operating systems. A big part of businesses today use Microsoft as their primary operating system for their computers due to its reliability‚ customizability‚ and its broad use from other businesses. As a Chief Information Officer of a medium-sized information services company‚ my job is to consider our customers and companies perspective and their feelings in using a new operating system into our company. If our company is not up to date
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