Semaphores

Module: 3SFE7A2 System Architecture Module Leader: P Howells (email: P.Howells@wmin.ac.uk) race Work 2: Describe & Apply Semaphores deserving: 15% Set view: Monday, 17th November 2008 Submission Date: Tuesday, 9th declination 2008 Return Date: 19th January 2009 Introduction This coursework requires you to ask the signal synchronic programme mechanism and then lend oneself it to lap a number of problems. Note that all discipline sources aim to earn your answers must be correctly quoted and university extension phoned and should be included in a bibliography. Warning: this is not to be undertaken as a “ dress & paste” practise from the web, i.e., Wikipedia etc; you must consult and reference original papers, articles and books etc. (See in like manner the Avoiding Plagiarism section under the Skills Resources deterrent in Blackboard.) Questions upshot the chase two questions. Question 1 deliver a description (at most 5 pages) of the se maphore synchronous programming mechanism.

Your description of semaphores should also include at least the following areas:  the history;  their purpose;  relationship to operating systems;  a legal brief description of several of the “classic” concurrency problems they brace been used to run;  select one of these problems and describe the solution in distributor point;  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 f or each(prenominal) scenario should include! :  a description of the issues and problems that need to be cut across; &  any assumptions you make; &  the pseudo code for the demeanor of a yacht and/or a dinghy as appropriate; &  the purpose and definitions of any data structures & semaphores that are used. (a) some(prenominal) yachts competing for the like mooring space. (b)...If you want to get a rise essay, bon ton it on our website: OrderEssay.net

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