BCS1333 Operating System (20 Mei 2014)

Ini adalah markah setakat 20  Mei 2014.
Sila hantar tugasan/latihan masing-masing selewat-lewatnya 3 hari selepas subjek terakhir final exam.

No.	Matric No.	Course	exercise 1 test example (10)	Quiz (scheduling) 10	asgmt 1	asgmt (cpu schedular)	deadlock	Test 1 (100)
1	13B04002	BCBM	√	8	√	√	√	74.1
2	13B04003	BCBM		10			√	78.7
3	13B04004	BCBM	8	8	√	√	√	85.2
4	13B04005	BCBM	8	8	√	√	√	90.7
5	13B04006	BCBM	8	8	√	√	√	83.3
6	13B04007	BCBM	8	8	√	√	√	85.2
7	13B04008	BCBM	7	10		√	√	66.7
8	13B04009	BCBM	8	8	√	√	√	68.5
9	13B04010	BCBM	8	8	√	√	√	55.6
10	13B04011	BCBM	8			√	√	79.6
11	13B04012	BCBM		7	√			92.6
12	13B04013	BCBM	10	10	√	√	√	87.0
13	13B04014	BCBM	8	10	√	√	√	72.2
14	13B04015	BCBM	8	8	√	√	√	59.3
15	13B04016	BCBM	8	10	√	√	√	90.7
16	13B04018	BCBM	8	10	√	√	√	83.3
17	13B04019	BCBM	8	10	√	√	√	70.4
18	13B04021	BCBM	8	8	√	√	√	85.2
19	13B04023	BCBM	8	8	√	√	√	88.9
20	13B04024	BCBM	8	8	√	√	√	90.7
21	13B04025	BCBM	10	10	√	√	√	81.5
22	13B04028	BCBM	8	10	√	√	√	81.5
23	13B04030	BCBM		8	√	√		79.6
24	13B04033	BCBM	9	8	√	√	√	70.4
25	13B04034	BCBM	8	8	√	√	√	77.8
26	13B04037	BCBM	8	10	√	√	√	81.5
27	13B04038	BCBM	8	8	√	√	√	94.4
28	13B04102	BCBM	8	8	√	√	√	84.3
29	13B07009	BCBM	7	10	√	√	√	85.2
30	13B08021	BCBM	7	10	√	√	√	88.9
31	13B08023	BCBM	8	10	√	√	√	85.2
32	13B08024	BCBM	8	10	√	√	√	87.0
33	11B07115	BCNS	6	10	√	√	√	94.4
34	11B07103	BCNS	6	10	√	√	√	83.3
35	11B07102	BCNS	6	√	√	√		90.7

BCS1333 Operating System (Chapter Summary)

Chapter 1 : Introduction to OS

Chapter 2 : OS Structures

Chapter 3 : Processes

Chapter 5: CPU Scheduling

Chapter 7: Deadlocks. Exercise

 Chapter 7: Deadlocks.

a)    What is deadlock?



b)    Draw FOUR (4) symbols used in Resources-Allocation Graph as follows.

    I ) Process


    II) Resources Type with three instances


    III) Pi requests instances of Rj


    IV) Pi is holding an instances of Rj

Rujuk Nota (slide) berikut.


+ Security

c) A password may become known to other users in a variety of ways. Is there a simple method for detecting that such event has occurred? Explain your answer.


d) The list of all passwords is kept within the operating system. Thus, if a user manages to read this list, password protection is no longer provided. Suggest a scheme that will avoid this problem.

BCT1133 OS 2 march 2014

Berikut adalah latihan (contoh soalan test)  untuk 2/3/2014 . Sila hantar bahagian A (true-false) sebelum jam 5.00 pm ke bilik saya. TQ.

SECTION A
 Respond with the correct answer by marking either True "T" or False "F" for each question.

i.    An Operating System acts an intermediary between the computer user and the computer hardware. [ T / F ]

ii.    A computer can be roughly divided into four components: the network, the CPU, the Hard disk  and the memory. [ T / F ]


iii.    Most computer systems provide secondary storage as an extension of main memory. [ T / F ]

iv.    The PC that you used in Network Security Lab is Single-Processor Systems [ T / F ]


v.    The multiple-processor systems in use today are of two types –asymmetric multiprocessing and symmetric multiprocessing. [ T / F ]

vi.    *For a computer system to begin running, the CPU must initialize and start executing the bootstrap program in firmware. [ T / F ]


vii.    *A process is a program in a storage. [ T / F ]

viii.    *A new process is started when you double click any icon on desktop of your PC.         [ T / F ]


ix.    *A process, when it is finish, is placed in some waiting queue. [ T / F ]

x.    *The parent process is created by child process. [ T / F ]

 * Soalan dari Chapter 3.
 Sila klik sini untuk download slide
 Sila klik sini untuk download nota penuh.


SECTION B

1.    What is Operating Systems? (3 marks)

2.    Why do computer need Operating Systems? (3 marks)

3.    Give 4 examples of OS available on the market. (4 marks)

4.    Briefly explain the process of booting. (5 marks)

5.    What is the purpose of system calls? (2marks)

6.    Give five (5) types of system calls. (5 marks)

7.    *Explain three (3) types of process states. ( 3 marks)

8.    Give five (5) services provided be OS for process management. (5 marks)

9.    Why we cannot store the programs and data in main memory permanently? (4  marks)

10.    *What is long-term-scheduler (also called job schedular) and what os short-term-schedular (also called CPU schedular). (4  marks)

BCS1333 Operating System: Assignment 1

1.The service provided by an Operating System can be divided into two main categories. Briefly describe the two categories and discuss how they differ.


2. List five services provided by an Operating System that are designed to make it more convenient for users to use computer system.

3.Describe the three general methods for passing parameters to the Operating System.

4.What are the five major activities of an Operating System with regards to file management?

5. Describe the differences between symmetric and asymmetric multiprocessing. What are three advantages and one disadvantage of multiprocessor systems?


6. Give two reasons why caches are useful. What problems do they solve? What problems do they cause?


Due date : 2 mac 2014 (2 weeks)
References: Chapter 1 : INTRODUCTION. Wiley - Operating Systems Concepts+ internet