NOTE: There are 11 Questions in all.
· Question 1 is compulsory and carries 16 marks. Answer to Q. 1. must be written in the space provided for it in the answer book supplied and nowhere else.
· Answer any THREE Questions each from Part I and Part II. Each of these questions carries 14 marks.
· Any required data not explicitly given, may be suitably assumed and stated.
Q.1 Choose the correct or best alternative in the following: (2x8)
a. The first component of a line in a machine language program is called
(A) Lines of code. (B) Opcode.
(C) Psuedocode. (D) Operators and operand.
b. A translator that reads an entire program written in high level language and converts it into machine language code is
(A) Assembler. (B) Translator.
(C) Compiler. (D) Interpreter.
c. A decision table
(A) Represents the information flow.
(B) Shows the decision paths.
(C) Gets an accurate picture of the system.
(D) Documents rules that select one or more actions, based on one or more conditions, from a set of possible conditions.
d. The technique that stores a program on a disk and then transfers the program into main storage as and when needed is
(A) Spooling. (B) Swapping.
(C) Thrashing. (D) Scheduling.
e. In flowcharting a computer program, the diamond shaped symbol is used for
(A) Decision making. (B) Action flow.
(C) Processing. (D) Input / Output.
f. Which of the following is a graphical package?
(A) Corel Draw. (B) Wordstar.
(C)
Lotus 1-2-3. (D) Dbase III.
g. A word processor is
(A) A computer program that handles text.
(B) An output device.
(C) An input device.
(D) A device that tells us the meaning of words.
h. The part of the operating system, which permanently resides in the main memory, is
(A) Job Scheduling model. (B) Kernel.
(C) Translator. (D) Compiler.
Answer any THREE Questions. Each question carries 14 marks.
Q.2 a. Draw a flowchart to find the sum of the series up to N terms.
S = 2 + 5 + 10 +17 + 26 + 37 + …. (7)
b. What is a decision table? Give the steps to construct a decision table. (3 + 4)
Q.3 a. Write an algorithm to find the largest of the given three numbers X1, X2, X3. (7)
b. What is a pseudocode? Give two advantages and disadvantages of pseudocode. (3 + 4)
Q.4 a. Write a BASIC program to generate fibonacci series up to 10000.
1, 1, 2, 3, 5, 8, 13, 21 …. (7)
b. What are the two types of errors that commonly occur in any computer program? Explain about the errors that can be detected by the computer. (7)
Q.5 a. Write a FORTAN program to compute the area and perimeter of a triangle, given the sides of a triangle. s = (a + b + c) / 2.
area = sqrt (s (s – a) (s – b) (s – c))
perimeter = s (7)
b. Define the terms source program and object program with respect to assembly language programming. How is the source program converted to an object program? (4 + 3)
Q.6 a. Differentiate between modular and structured programming techniques. (6)
b. Illustrate the working of an interpreter. Give the advantages of an interpreter over the compiler. (8)
Answer any THREE Questions. Each question carries 14 marks.
Q.7 a. The number of directories used and the way these directories are organized varies from one system to another. Explain the three types of directory organizations that are commonly used. (8)
b. Define the time-sharing mechanism. How is it achieved? Explain the working of a time-sharing system with the help of a diagram. (6)
Q.8 a. Mention the main functions of a CPU in the computer system. (3)
b. Explain how the CPU executes an instruction in a computer system. (7)
c. Name the registers that are used by the ALU to perform various tasks. Explain how these registers help. (4)
Q.9 a. By default how are numeric data and text data aligned in a spreadsheet? (2)
b. How is the column heading aligned to the center when two columns have the same column heading? (2)
c. Explain how the functions work in a spreadsheet with an example.
(i) SUM. (ii) MAX
(iii) AVG. (6)
d. A worksheet contains the following details. Give the sequence of steps to draw the bar graph of the material in all months. (4)
|
|
A |
B |
C |
D |
E |
F |
G
|
|
1 |
Expenses |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
|
2 |
|
|
|
|
|
|
|
|
3 |
Material |
30.0 |
26.0 |
21.0 |
28.0 |
32.0 |
29.0 |
Q.10 a. Explain the word wrap feature in a word processor package. (4)
b. Explain briefly, the procedure to
(i) Change the line spacing between the lines of a paragraph.
(ii) To insert a picture into a document.
(iii) To change the font size of the paragraph. (2+3+1)
c. It is required to print the page number at the bottom and a heading at the top-center of the page. Give the steps to achieve this. (4)
Q.11 a. Mention the tasks performed by the Utility Programs. (4)
b. Define the System software. (2)
c. Write a short note on personal assistance package. (8)