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840/1
COMPUTER
STUDIES
Paper 1
March, 2011
1¼ hours
JINJA COLLEGE SCHOOL EXAMINATIONS BOARD
Senior One End of Term One Examination
COMPUTER STUDIES
1 hour 15 minutes
INSTRUCTIONS:
Write your name, and stream in the spaces above.
This paper consists of two sections A and B.
Section A contains 20 compulsory objective-type questions.
The correct alternative A, B, C or D must be written in the table provided
below.
Section B contains two compulsory structured questions.
Answers to section B must be written in the spaces provided on this
question paper.
TABLE FOR SECTION A ANSWERS
1.
D
6
D
11
B
16
D
2
C
7
A
12
B
17
C
3
A
8
B
13
A
18
D
4
A
9
C
14
D
19
B
5
B
10
C
15
C
20
A
© 2011 Jinja College Computer Studies Department.
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SECTION A: (20 MARKS)
Answer all questions in this section.
1. Which number system is used to represent digital information in computers?
A. Decimal system.
B. Analogue system.
C. Digital System.
D. Binary system.
2. Which of the following is a basic unit of measuring computer memory?
A. How heavy the hard disk is in grams (g).
B. Millions of instructions per second.
C. Byte.
D. How fast the computer is in meters per second (m/s).
3. Which one of the following was the earliest computing device?
A. Abacus.
B. Fingers.
C. Sticks.
D. Mechanical computers.
4. Which of the following is an output device?
A. Printer.
B. Mouse.
C. Keyboard.
D. Compact Disk (CD).
5. The term used to refer to the ability of computers to perform the many tasks at the
same time is:
A. Spontaneous.
B. Versatile.
C. Adaptability.
D. Accurate.
6. Who of the following is regarded as the father of computers?
A. Joseph Marie Jacquard.
B. Bill Gates.
C. The Early Man.
D. Charles Babbage.
7. The first electronic computer is:
A. ENIAC.
B. the Mark I.
C. UNIVAC (UNIVersal Automatic Computer)
D. IBM (International Business Machine)
8. Another term for a computer program is:
A. Hardware.
B. Software.
C. Keyboard.
D. Input-Output (I/O).
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Study figure1 below and use it to answer the questions 9 and 10:
Figure1
9. Which button can be clicked on to minimize the My Computer window shown above?
A. Button labeled 1.
B. Button labeled 2.
C. Button labeled 3.
D. Button labeled 4.
10. Which two areas can one click on if he wants to close the window above?
A. 1 or 2.
B. 1 or 3.
C. 1 or 4.
D. 1 only.
11. The largest key on the keyboard is the
A. Return key.
B. Space key.
C. Caps Lock.
D Arrow key.
12. Which of these generations in the evolution of computers, is characterized by the use
of integrated circuits?
A. First generation.
B. Third generation.
C. Second generation.
D. Fourth generation.
13. Which of the following was a development during the mechanical era (1623 – 1945)?
A. Analytical engine.
B. Transistors.
C. Vacuum tubes.
D. Abacus.
14. ICT as used in computer Studies stands for
A. International Computer Technology.
B. Integrated Circuits Technology.
C. Information Communication and Technology.
D. Information and Communication Technology.
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15. The American statistician who developed a mechanical tabulator based on punched
cards to rapidly represent the data gathered for the USA population census of 1890 was:
A. Howard Aiken.
B. Dr. Grace Murray Hopper.
C. Herman Hollerith.
D. William Oughtred.
16. Which one was the first calculator that could perform all four arithmetic operations:
addition, subtraction, multiplication and division?
A. The Abacus.
B. The Slide Rule.
C. Blaise Pascal's Calculator.
D. Leibniz’s Stepped Reckoner.
17. Graphic symbols or small pictures that represent programs, commands or documents
usually found on the desktop are called:
A. Folders.
B. Taskbars.
C. Icons.
D. Games.
18. The invention of transistors in the mid-50's replaced ……………….. and paved way
for smaller and cheaper computers.
A. Punched Cards.
B. Microprocessors.
C. Integrated Circuits.
D. Vacuum Tubes.
19. What does the term Artificial Intelligence mean as used in computer studies?
A. Knowledge about artificial devices that are being produced today.
B. Programming of devices to assume human capabilities such as learning,
reasoning, adaptation, and self-correction.
C. Fast thinking and cleverness of machines.
D. Brainpower of computers that is greater that our Natural Intelligence as
human beings.
20. Which one of the following is the lowest-level programming language understood
by computers?
A. Machine Language.
B. FORTRAN (Formula Translator).
C. BASIC (Beginner's All-purpose Symbolic Instruction Code).
D. 5GLs (Fifth-Generation programming Languages).
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SECTION B: (20 MARKS)
Answer all questions in this section in the spaces provided.
21. (a) State any four reasons why we study computer studies.
(4 marks)
 To promote critical and analytical thinking for hands-on solutions through
computing innovations in the sciences such as vaccine research, environmental
protection, business, entertainment and education, which make a positive difference in
the world.
 To create awareness in a learner about the developments and emerging issues
concerning computing and society.
 To get jobs. Computer studies provides a foundation that serves as a competitive
advantage in a career, in whatever field one chooses.
 To acquire skills in the use of ICT for enhanced productivity and development.
 To promote creative knowledge for problem solving. Computing develops capabilities
in solving deep, multidimensional problems requiring imagination and sensitivity
(b) Describe the terms below as used in computer studies:
(6 marks)
(i) Debugging:
 This is the process of finding and correcting errors, in a computer program.
(ii) Data:
 This refers to facts and figures, which are entered into the computer by the
user in a form suitable for processing.
(iii) Diligence:
 This refers to the ability of a computer to perform the same task over for
long time without getting tired. (Endurance)
22. (a) Write the following computing acronyms in full:
(4 marks)
(i) VLSI
 Very Large Scale Integration
(ii) ENIAC
 Electronic Numerical Integrator and Computer
(b) Mention any six setbacks that were associated with the first generation computers
(1946 – 1958):
(6 marks)
 They broke down frequently (Required
standby technicians)
 Needed very many people to operate due to
their huge size.
 High level of training was required before
use
 They produced a lot of heat and burned out.
 They consumed a lot of power
 They produced a lot of noise.
 They had limited primary memory, and so
they were very slow.
 They were very expensive to buy, setup and
maintain.
 They were not portable/ they were very
huge - One computer could take up space
of several floors in big buildings.
 Manual assembly of individual components
into one functioning unit required.
 Air conditioning required.
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