Semaphores

Module: 3SFE7A2 System Architecture Module Leader: P Howells (email: P.Howells@wmin.ac.uk) race Work 2: Describe & Apply Semaphores worthy: 15% Set encounter: Monday, 17th November 2008 Submission Date: Tuesday, 9th declination 2008 Return Date: 19th January 2009 Introduction This coursework requires you to check the semaphore synchronic computer programing mechanism and then utilization it to lap a number of problems. Note that all cultivation sources hold to earn your answers must be correctly quoted and addendum phoned and should be included in a bibliography. Warning: this is non to be undertaken as a “ lose weight & paste” physical exertion from the web, i.e., Wikipedia etc; you must consult and reference original papers, articles and books etc. (See similarly the Avoiding Plagiarism section under the Skills Resources deterrent in Blackboard.) Questions coiffure the following(a) two questions. Question 1 deliver a description (a t most 5 pages) of the semaphore synchronous programming mechanism.

Your description of semaphores should also include at least the following areas:  the history;  their purpose;  relationship to operating systems;  a abbreviated description of several of the “classic” concurrency problems they brace been used to ferment;  select one of these problems and describe the solution in gunpoint;  the advantages and disadvantages associated with using semaphores. [20 marks] 1 Question 2 Using the semaphore mechanisms you have described in Question 1, explain how you would use them to solve the following problems in relation to yachts and dinghies using a marina. Your explanations for each(prenominal) sc! enario should include :  a description of the issues and problems that need to be cut across; &  any assumptions you make; &  the pseudo code for the demeanour of a yacht and/or a dinghy as appropriate; &  the purpose and definitions of any data structures & semaphores that are used. (a) several(prenominal) yachts competing for the like mooring space. (b)...If you want to get a full moon essay, bon ton it on our website: OrderEssay.net

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