DECEMBER 2006

Code: D-14                                         Subject: COMPUTER SOFTWARE FUNDAMENTALS

Time: 3 Hours                                                                                                     Max. Marks: 100

NOTE: There are 9 Questions in all.

· Question 1 is compulsory and carries 20 marks. Answer to Q. 1. must be written in the space provided for it in the answer book supplied and nowhere else.

· Out of the remaining EIGHT Questions answer any FIVE Questions. Each question carries 16 marks.

· Any required data not explicitly given, may be suitably assumed and stated.

Q.1       Choose the correct or best alternative in the following:                                         (2x10)

a. Algorithms can be represented as 

(A)  programs                                      (B)  flowcharts

(C)   decision tables                             (D)  all of these

b.                         symbol in a flowchart represents

(A) online storage                               (B)  offline storage

(C)  sort operation                               (D)  I/O operation

             c.   The interval from the time of submission of a process to the time of completion is

(A) Response time                              (B)  turn around time

(C)  wait time                                      (D)  seek time

             d.   Structured programming makes use of

(A)  sequence logic                             (B)  selection logic

(C)  iteration logic                               (D)  all of these     

             e.   Assembler directives are

(A) pseudocodes                                (B)  guidelines to assembler

(C)  opcodes in assembly language   (D)  guidelines to the computer

             f.    BASIC uses ________   as a language translator

(A) Assembler                                    (B)  Compiler

(C)  Interpreter                                    (D)  Linker

             g.   When a job is allocated to CPU for execution, its state changes from

(A) Ready to Running                         (B)  Running to Ready

(C)  Ready to blocked                         (D)  Blocked to Ready

h.   .man file extension indicates a

(A) Microsoft word document            (B) online manual page file

(C) Microsoft Access file                     (D) online text file

             i.    in a spreadsheet indicates

(A) division operation                          (B) addition operation

(C) cumulative addition operation         (D) extracts the remainder

             j.    Thesaurus in a word processor gives

(A)  Antonyms                                     (B)  Synonyms

(C)  Meanings                                     (D)  Spell checking

Answer any FIVE Questions out of EIGHT Questions.

Each question carries 16 marks.

Q.2     a.   Draw a flowchart to receive numbers from 0 to 100 from the user and print the sum of all even numbers.                                                                (8)

             b.   Write the flow chart symbols for the following operations:

                   Printed document, Display output, Manual input, Manual operation, Communication links, Merge, Sort, Extract.                                               (4)

             c.   Differentiate between system software and application software.                         (4)

Q.3     a.   Write a pseudocode to check whether a given triangle ABC is Isosceles or not, based on the angles A, B, C supplied by the user. Print ‘Yes’ or ‘No’.                                                           (8)

             b.   What are the merits and demerits of Assembly language?                                    (3)

c.   Write a BASIC program to generate fibo nacci series upto100.                          (5)

Q.4     a.   Write a C-code to search the second largest element in a numerical array of 10 elements.               (10)

b.   Differentiate between the following:-

(i) Cut-and-paste and copy-and-paste facilities in word-processing package.

(ii) Portrait and landscape modes of printing.

(iii) Centre and justified text.                                                             (6)

Q.5     a.   Write in brief about enhancement of features in WINDOWS as compared to DOS OS.                 (4)

     b.   List and explain briefly the main functions of an OS.                                            (4)

c.   Given two arrays A and B with elements sorted in ascending order. Write an algorithm to merge A and B into another array C such that elements of C are again sorted in ascending order. (8)

  Q.6     a. Write a note on time sharing OS.                                                                        (4)

             b.   What is external fragmentation?  How can it be avoided?  Compare it with internal fragmentation.                                                              (6)

c.   What is a decision table?  Give the steps to construct a decision table.                 (6)

Q.7     a.   Make a comparative study of Disk space allocation methods.                             (9)

             b.   What is demand paging?  Where is it used?                                                        (4)

             c.   What is the difference between multitasking and multithreading?                          (3)

Q.8       a.   What is the use of  ‘Mail merge’ feature?  What are the steps followed in mail merging?                  (6)

             b.   What are the four different types of data that can be entered into a cell?              (6)

c.   What is global search-and-replace, command of a word-processing? Give an example of a situation where it is useful.                                              (4)

Q.9           Write short notes of the following:

(i) Programming techniques.

(ii) Graphics feature in a spread sheet package.

(iii) Command interpretation in OS.

(iv) Pre processor.                                                                         (4 4 = 16)