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Course Code : CS-63
Course Title : Introduction to System Software
Assignment Number : BCA(3)-63/TMA/2007
Maximum Marks : 10
Last Date of Submission : 31 st October, 2007

This is a Tutor Marked Assignment. There are four questions in this Assignment. Answer all the questions. Each question carries equal weightage. You may use illustrations and diagrams to enhance explanation.

Question 1: Write an algorithm and draw a corresponding flow chart to convert a binary number to its octal equivalent.

Question 2: Define the following scheduling concepts: Response time, Process turn around time, Throughput, schedule length, Waiting time and Average waiting time.

Also, consider the following set of processes that arrive in the ready queue at the same time:

Process _______________CPU time

P1 ___________________5

P2 ___________________3

P3 ___________________4

P4 ___________________2

P5 ___________________1

Consider the following scheduling algorithms:

First Come First Serve (FCFS), Shortest job Next(SJN) and Round Robin (quantum = 2)

• What is the turnaround time of each process for each of the above scheduling algorithms?
• What is the waiting time of each process for each of the above scheduling algorithms?
• Also, draw the Gantt charts for each algorithm.

Question 3: Summarize in 350 words the important features of the new operating system the WINDOWS VISTA.

Question 4: Summarize the features of a UNIX shell.

Also write a shell program to delete all the file(s) in the current directory whose starting letter and length of the file-name being given by the user as the inputs.

Course Code : CS-63
Course Title : Introduction to System Software
Assignment Number : BCA(3)-63/Project/2007
Maximum Marks : 15
Last Date of Submission : 31 st October, 2007

This is a Project. There are four questions. Answer all the questions. You may use illustrations and diagrams to enhance explanations wherever necessary.

Question 1: Derive a regular grammar to describe the syntax of a conventional representation of do-while, conditional operator, break and continue statements in C programming language.

Question 2: 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.

Question 3: Write a shell program to calculate the lucky number when a date of birth is entered by the user.

Question 4: List and execute the following UNIX commands:

• To rename a given file.
• To search a file for lines that match a particular string pattern given and count the number of occurrences.
• To print the first 15 lines of a file.
• To print the list of the currently logged-in users.
• To search for a given pattern in a file and display its count.
• To sort alphabetically, a list of numbers stored in a file.
• To count, number of words in a given text file.
• To kill a process with its PID.
• To display the long listing of the files in a directory.
• To run a process in the background.

Course Code : CS-05
Course Title : Elements of System Analysis and Design
Assignment Number : BCA(3)-05 TMA/2007
Maximum Marks : 10
Last Date of Submission : 31 st October, 2007

This is a Tutor Marked Assignment. There are two questions in this assignment. Answer all the questions. You may use illustrations and diagrams to enhance explanations. All questions carry equal weightage.

Question 1 : Assume that you are a Systems Analyst working for a big company to develop their payroll System. What Software Development methodology will you use and Why?

Question 2 : Explain the various software life cycle models. Also, indicate which model is suitability for which type of projects.

Course Code : CS-05
Course Title : Elements of System Analysis and Design
Assignment Number : BCA(3)-05/Project/2007
Maximum Marks : 15
Last Date of Submission : 31 st October, 2007

This is a Project Assignment. Answer the following question. You may use illustrations and diagrams to enhance explanations.

Question 1: Assume that you are appointed as Systems Analyst for a project titled Hospital Maintenance System. Develop an SRS (Software Requirements Specification) for the Hospital Maintenance System. Make assumptions, wherever necessary.