Class 5 Computers Half Yearly Exam 2018

Section A [40 Marks]

Q1. Fill in the blanks:

  1. The abacus is believed to be the first calculating device.
  2. An expert system is a computer system that has decision-making ability like humans.
  3. Smart cards look like magnetic strip cards but contain a small chip instead of a magnetic strip.
  4. The disk defragmenter identifies file fragments and rearranges them together for more efficient utilization of space.
  5. Format Painter allows you to copy all the formatting elements such as color, font style, etc.
  6. The Page Borders option is found on the DESIGN tab of the Page Background group.
  7. A Sprite is a graphic element in Scratch that you can give commands to.
  8. The Costumes will enable you to change the appearance of the sprite while your program is running.
  9. The Green Flag is used to run the script.
  10. Mark I was designed in the year 1944.

Q2. a) State True or False:

  1. The instructions written in different technical languages are known as programming languages. (FALSE)
  2. An operating system is the master control program that runs the computer. (TRUE)
  3. The number of white space between the text and the edges of a page is called the indent. (FALSE)
  4. The Scratch Logo button takes you to the Home Page of the Scratch website. (TRUE)
  5. The File menu has the commands to adjust the Stage size. (FALSE)

Q2. b) Give the full forms for the following:

  1. ENIAC I: Electronic Numerical Integrator and Computer.
  2. EDSAC: Electronic Delay Storage Automatic Calculator.
  3. EDVAC: Electronic Discrete Variable Automatic Computer.
  4. UNIVAC: Universal Automatic Computer.
  5. AI: Artificial Intelligence.

Q3. a) Match the following:

  1. IBM 1401 – Second generation computer.
  2. NORTON – Utility Software.
  3. HEADER & FOOTER – DESIGN Tab.
  4. Shrink – Make Sprite small.
  5. Costume Tab – Scratch Window.

Q3. b) Give one word for the following:

  1. Computers can perform different jobs efficiently. (Versatility)
  2. Reading information stored in cards. (Card Reader)
  3. Making changes to default settings for the page. (Page formatting)
  4. Example of a supercomputer. (PARAM 8000/CRAY CS300)
  5. Shows Sprites that have been added. (Sprites list)

Q4. Answer all questions:

  1. What is Napier’s Bones?
    Calculating device that had numbers carved on bones or strips of wood.
  2. Explain the Magnetic Ink Character Reader.
    Device that scans characters printed in magnetic ink.
  3. What is orientation?
    Direction (length or width) in which the page is printed.
  4. What is the use of the Globe button in Scratch?
    Opens a menu which lists all the languages in which Scratch is available, so that we can change the language in Scratch.
  5. What is the use of the Sound tab in Scratch?
    To add sound to a sprite.

Section B [40 Marks]

Q5. a) The sum of two numbers is 8905. If one of the numbers is 7050, WAP to find the other number.
10 LET SUM = 8905
20 LET A = 7050
30 LET B = SUM – A
40 PRINT “The other number = “;B
50 END

b) Evaluate the following expression:
8 ^ 2 + (4 * 3) / 2 – 2
= 8 ^ 2 + 12 / 2 – 2
= 64 + 12 / 2 – 2
= 64 + 6 – 2
= 70 – 2
= 68.

Q6. a) WAP to assign Principal, Rate and Time. Display the Simple Interest. [SI = P * R * T / 100]
10 LET P = 5000
20 LET R = 4
30 LET T = 2
40 LET SI = P * R * T / 100
50 PRINT “Simple Interest = “; SI
60 END

b) Debug the errors:
10 LET A$ = 5
20 LET 25 = B
30 LET C = 40
40 LET SUM$ = A + B + C
50 PRINT SUM
60 END

10 LET A = 5
20 LET B = 25
30 LET C = 40
40 LET SUM = A + B + C
50 PRINT SUM
60 END

Q7. a) The length of a rectangular field is 400 and its breadth is 200. WAP in BASIC to calculate area and perimeter. [area = length ×  breadth, perimeter = 2 ×  (length + breadth)]
10 LET L = 400
20 LET B = 200
30 LET A = L * B
40 LET P = 2 * (L + B)
50 PRINT “Area = “; A
60 PRINT “Perimeter = “; P
70 END

b) Write the syntax of the LET statement with an example.
Syntax:
LET <variable> = <expression or value>
Example:
LET A = 5

Q8. a) If two angles of a triangle are 50 and 70, then WAP to display the third angle. [third angle = 180 – (sum of the two angles)].
10 LET A = 50
20 LET B = 70
30 LET C = 180 – (A + B)
40 PRINT “Third angle = “; C
50 END

b) Identify the variables:
i) “school” – String
ii) your age – Numeric
iii) name$ – String

Q9. a) WAP to store the words “I”, “LOVE”, and “SOCCER” in three different variables and print the words in the format given below:
I
LOVE
SOCCER
10 LET A$ = “I”
20 LET B$ = “LOVE”
30 LET C$ = “SOCCER”
40 PRINT A$
50 PRINT B$
60 PRINT C$

b) Write the function of the PRINT statement. Give syntax and example also.
The PRINT statement is used to display a message on the BASIC screen.
Syntax:
PRINT <message>
Example:
PRINT “Hello”

Q10. a) WAP to assign 540 to a variable. Display and find 10% of 540.
10 LET N = 540
20 LET P = 10 / 100 * 540
30 PRINT “10% of 540 = “; P
40 END

b) Give a suitable variable to store the following values:
i) Your favorite footballer’s name: N$
ii) Father’s mobile number: M
iii) Your height: H

Leave a Reply

%d bloggers like this: