S Edit & Create ve Share1..Suppose that a disk drive has 200 cylinders num-bered 0 to 199. The drive is currently serving arequest at cylinder 95, the queue of pendingrequests, in FIFO order is 98, 181, 37, 120, 14,122, 65, 69.Starting from the current head position, whatis the total distance (in cylinders) that the diskarm moves to satisfy all the pending requestsfor each of the following disk scheduling al-gorithm,(1)SCAN(ii) C-SCAN.

Answered: Suppose that a disk drive has 200…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Q: You are required to code two processes; the first shall simulate the first process and other the arrival of second process. These processes can come at any time, in any order. The first process shall call a procedure called FirstHere on the arrival of first process. Similarly, the second process shall call a procedure called SecondHere on the arrival of second process. The two processes will simulate the arrival of processes at random intervals and should run for a while to show around 10 queues leaving with different safe combinations. Before terminating you must clean up the semaphores and shared memory segments from the system. You must output the progress of the processes. Use semaphores to implement the solution. Note: Code in C++ and it must not be copied from somewhere else or else 11l downvote your answer.
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