Question Papers and Solutions

CS- 63: Introduction to System Software of December 1999

CS- 63: Introduction to System Software of December 1999

Question No 1. (a) Design an algorithm that converts binary number to octal. [8]
(b) Compare and contrast the features of paging and segmentation. [7]
(c) Write an algorithm/program to find greatest common Divisor among given two numbers. [8]
(d) Write context free grammar for if-then-else statement. [7]

Question No 2. (a) What is the function of a loader? Discuss different loader schemes. [6]
(b) With a neat sketch, discuss the structure of an Editor. [4]

Question No3. (a) Write short notes on: (i) Lex (ii) Yacc (iii) Kernal approach (iv) demand paging [6]
(b) Discuss the directory structure of UNIX file system. [4]

Question No 4. (a) Compare and contrast the features of Network operating system and Distributed operating system. [3]
(b) Explain the context of (i) Synchronization (ii) Mutual exclusion (iii) Semaphores (iv) Deadlock (v) Virtual Memory [7]

Question No 5. (a) Write about the CPU scheduling and memory management in UNIX. [4]
(b) Write UNIX command for the following: [6]
(i) To search for a string from two given files. (ii) To display the lines that do not include the given string. (iii) To find the number of characters, word and lines in a text file. (iv) To kill a process with a pid “1150�? (v) To display last 20 lines of a file.

Question No 6. (a) Describe the objective of long term and short term schedulers. [4]
(b) Write about multiprogramming with dynamic partition with necessary figures. [6]

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