Monday, October 24, 2011

IGNOU (BCA) ASSIGNMENTS Year 2011 (3rd Semester) CS-63 CS-05


1. IGNOU BCA-CS-63 Assignment 2011(solved)
 
2. IGNOU BCA-CS-05 Assignment 2011(solved)
 



Course Code : CS-63
Course Title : Introduction to Software
Assignment Number : BCA(3)-63/Assignment/2011
Maximum Marks : 25
Last Date of Submission : 30th April, 2011/30th October, 2011

There are six questions in this Assignment. Answer all the questions. You may use illustrations and diagrams to enhance explanation.

Question 1: Explain the three main purposes of an operating system? What is layered approach to OS design? Also, describe its advantages and disadvantages.
(4 Marks)

Question 2: Write a shell program to generate the first 25 prime numbers.
(4 Marks)

Question 3: What is ‘Mutual Exclusion’? Write pseudo code to implement
mutual exclusion using:

(i) Test and Set instruction and
(ii) Swap instruction
(4 Marks)

Question 4: Consider the following set of processes:

Process Burst time (ms)

P1 10
P2 29
P3 3
P4 7
P5 12

Evaluate the performance of FCFS, SJF and RR (Quantum = 10 ms) algorithms for scheduling the above processes.
(3 Marks)

Question 5: Write a shell program to cipher all the text/content in any text document in the current working directory and also use another shell program to decipher it to read. Use any scheme for ciphering.
(6 Marks)

Question 6: Write the UNIX commands for the following tasks:
• find lines common to two or more files
• compare files but stops at first occurrence of a difference
• show differences of two files
• list all jobs in the waiting queue
(4 Marks)

Course Code : CS-05
Course Title : Elements of System Analysis and Design
Assignment Number : BCA (3)-05/Assignment/ 2011
Maximum Marks : 25
Last date of Submission : 30th April, 2011/30th October, 2011

There are three questions in this assignment. Answer all the questions. You may use illustrations and diagrams to enhance your explanations.

Question 1: Explain how the existence of remote users might complicate information system design. Describe a system in which you might be considered a remote user.
(10 Marks)
Question 2: Define well-formulated educational objectives for your academic career. Describe at least five constraints that could limit your ability to achieve your objectives.
(5 Marks)
Question 3: How does a project management life cycle (or process) contribute to an organization’s ability to achieve CMM level 5 certification?
(10 Marks)

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