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TCC222/05 Operating Systems

TCC222/05 Operating Systems Instructions to students: 1. The assessment covers the topics in Units 1 and 2 of course materials. 2. The total marks for TMA 1 is 100 and contributes 25% to the total grade. 3. This is an individual assignment. Answer all questions in English. No duplication of work will be tolerated. Any plagiarism or collusion may result in disciplinary action in addition to ZERO marks being awarded to all parties involved. 4. Submit your TMA to the Online Assignment Submission system. Submission of TMA in hard copy will not be accepted. Marks will be awarded for quality content and presentation. 5. Students are highly encouraged to passage their TMAs, which are answered in English using MS Word/MS Excel, to the Turnitin system (http://www.turnitin.com) before OAS (https://assignment.wou.edu.my) submission. It is to encourage honest academic writing. However, it is not mandatory except for Project course in respective programme. 6. Please check the WawasanLearn for submission deadline. Question 1 Operating System (OS) is software responsible for managing the computer hardware and provides a simplified interface to the computer users. Discuss the role as a) resource allocator, b) resource controller, c) resource monitor, and d) user-friendly interface, for each type of OS as follows. i) Multi-user OS ii) Embedded OS Your answer should be in essay format with approximately 600 or more words. Hints: Use separated example OS/scenario to describe each role for each OS. Use graphics/images in the answer to visualize your discussion for reader. [36 marks] Question 2 ‘Lollipop’ is Android’s latest operating system for mobile devices, also known as Android 5.0. Conduct an online research on Android Lollipop OS, and write a review on it based on how its features are more advanced than the previous versions with respect to contexts as follows. a) Health & fitness for everyone b) Cloud computing for e-learning Your answer should be in essay format with approximately 600 or more words. Hints: Use examples, graphics, and tabular data in answer to visualize your discussion for the reader. [34 marks] Question 3 Discuss the roles of each scheduler using a scenario in separated example type of Operating System as follows. a) Long-term scheduler, or also known as job scheduler b) Short-term scheduler, or also known as dispatcher c) Medium-term scheduler, or also known as swapper Your answer should be in essay format with approximately 600 or more words. Hints: Use examples and graphics to visualize your discussion for the reader. [30 marks] TCC222/05 Operating Systems January Semester 2016 Tutor Marked Assignment 2 Instructions to students: 1. The assessment covers the topics in Units 3 and 4 of course materials. 2. The total marks for TMA 2 is 100 and contributes 25% to the total grade. 3. This is an individual assignment. Answer all questions in English. No duplication of work will be tolerated. Any plagiarism or collusion may result in disciplinary action in addition to ZERO marks being awarded to all parties involved. 4. Submit your TMA to the Online Assignment Submission system. Submission of TMA in hard copy will not be accepted. Marks will be awarded for quality content and presentation. 5. Students are highly encouraged to passage their TMAs, which are answered in English using MS Word/MS Excel, to the Turnitin system (http://www.turnitin.com) before OAS (https://assignment.wou.edu.my) submission. It is to encourage honest academic writing. However, it is not mandatory except for Project course in respective programme. 6. Please check the WawasanLearn for submission deadline. Question 1 Upon the occurrence of memory wastage in memory management schemes, two methods of non-contiguous memory allocation are used. Discuss the two non-contiguous memory allocation methods using diagram and descriptions. Your answer should be in essay format with approximately 100 or more words. [30 marks] Question 2 A page shall be paged out when page is not required in the memory pages. Page replacement algorithms are used to perform the page out activity. Calculate the page faults for reference string 1 3 3 5 1 1 8 3 8 9 9 9 with respect to frame size of 3 using the algorithms as follows. Show your workings in details. a) Belady’s anomaly algorithm b) Optimal algorithm [40 marks] Question 3 In order to allow fast accessing to the stored files on the disk, the space allocation these files is the crucial context. Discuss the three methods of space allocation using diagram and descriptions as follows. a) Contiguous allocation b) Linked allocation c) Indexed allocation Your answer should be in essay format with approximately 150 or more words. [30 marks]]]>

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