BN104/BN104D: Operating Systems- Device Handler Seek Strategies- IT Assignment Help

Internal Code: 3AGH

IT Assignment Help:

Task: he purpose of this assignment is to report on some important characteristics of Operating Systems. Students must answer Multiple Answer questions and provide written answer about the process, file and device management, deadlock, and UNIX commands. After successful completion of this assignment, students should be able to: a. Report on the basics, and provide examples, of operating systems structure and functionality, including memory allocation, virtual memory, demand paging and process and device management. b. Describe the integration of hardware, operating systems and application software. c. Explain in detail the functioning of some devices such as peripherals (e.g. printers and network connections). d. Discuss the most common file systems structure and technology. e. Explain the concept of user interfaces and their role in the functionality of an OS. f. Demonstrate competency in the use of a command line interface to operate with and manage an OS such as UNIX, and perform simple UNIX (Linux) administration. g. Support and troubleshoot operating systems and applications at an introductory level. Questions:

1. Device Handler Seek Strategies and Primary and  Secondary storage On a hard disk, the queue of track requests is as follows: 20 35 1 27 2 11 18 60 23 Assume that the head starts at track 20. Draw a diagram for arm movement for each of the following seek strategies. i) FCFS ii) SSTF iii) LOOK
2. Calculate the total number of tracks and the average number of tracks travelled by the  head to satisfy the requests in B-Q1-a (Details of the calculations is essential).