IGNOU Assignments - MCS02 - Introduction to Software - CS02 - MCA(1)-02/TMA/06

Course Code : CS-02

Assignment Number : MCA(1)-02/TMA/06

Maximum Marks: 10

Last Date of Submission : 15^th April, 2006

This is a Tutor Marked Assignment. There are five questions in this assignment. Answer all questions. You may use illustrations and diagrams to enhance explanations.

Question 1: Write an algorithm/program that accepts an input a binary number and converts it into octal representation.

Question 2: What is the usefulness of the Context Free Grammar (CFG)? Also, give an example.

Question 3: What are the important tasks performed during,

Lexical Analysis

Syntax Analysis

Semantic Analysis

Code Generation.

Question 4: Summarise the features of UNIX system that have made them such a phenomenally successful operating system.

Question 5: Write the UNIX commands for the following:

(a) List the PID's of all processes running as root on your computer on a line, separated by commas. E.g.,: 1,2,3,4,5,657,658, ... Use pipes to create a one-line command that accomplishes this.
(b) List all the usernames and names of the people logged on to the system presently.
(c) List all the files in the /tmp directory owned by the user root.
(d) To forcibly terminate a process using its process ID.

IGNOU MCA MCS02 - Introduction to Software CS02 - MCA(1)-02/TMA/06 Assignments