Primary 3 Computer Science First Term Examination​

PRIMARY 3 INFORMATION TECHNOLOGY – FIRST TERM EXAMINATION

Time Allowed: 1 hour
Marks: 80 marks

SECTION A – MULTIPLE CHOICE QUESTIONS (20 marks)

Choose the correct answer and write it in your answer sheet.

1. Which part is used to type? A. Mouse B. Keyboard C. Monitor D. Printer
2. The first counting device is? A. Calculator B. Abacus C. Computer D. Abaya
3. IBM 1401 is from which generation? A. First B. Second C. Third D. Fourth
4. The third generation computers used? A. Transistors B. IC C. Vacuum tubes D. AI
5. The CPU is found inside the? A. Keyboard B. System Unit C. Mouse D. Monitor
6. The fan in a CPU helps to? A. Store data B. Cool processor C. Give power D. Show images
7. Which part stores files permanently? A. RAM B. HDD C. PSU D. BIOS Battery
8. SSD is faster than? A. HDD B. PSU C. RAM D. Motherboard
9. Hardware is the part you can? A. Hear B. Touch C. Smell D. Taste
10. Keyboard is an? A. Input device B. Output device C. Storage device D. Software
11. The brain of the computer is the? A. Monitor B. CPU C. Keyboard D. HDD
12. Software is the __________ that tells the computer what to do. A. Hardware B. Program C. Cable D. Screen
13. Microsoft Word is? A. System software B. Application software C. Hardware D. PSU
14. Windows is an example of? A. System software B. Application software C. Hardware D. Keyboard
15. OS means? A. Operating Software B. Operating System C. Open Source D. Online System
16. Which OS is most popular? A. Windows B. Linux C. Ubuntu D. DOS
17. Linux is free and safe from? A. Sunlight B. Water C. Viruses D. Heat
18. Ubuntu is a type of? A. Linux B. Windows C. Game D. Software
19. Which OS is mostly used in offices? A. Windows B. Linux C. Ubuntu D. Android
20. Which OS is made by Microsoft? A. Ubuntu B. Windows C. Linux D. MacOS

Section B: Theory Questions (60 Marks)

Instructions: Answer three questions only (each question has parts a and b).

Question 1

1. List threeinput devices and their uses. (5 marks)
   b. Explain the difference between hardware and software. (5 marks)

Question 2

1. Name the five generationsof computers and one technology used in each. (5 marks)
   b. Why is the CPU called the “brain” of the computer? (5 marks)

Question 3

1. Mention threeinternal parts of the CPU and their functions. (5 marks)
   b. Why should we keep the CPU clean? (5 marks)

Question 4

1. Compare Windows and Linux operating systems (state twodifferences). (5 marks)
   b. Give twoexamples each of system and application software. (5 marks)

Question 5

1. What is an operating system? List twofunctions. (5 marks)
   b. Name threeoutput devices and their uses. (5 marks)

Question 6

1. Describe the Abacus and its importance in computer history. (5 marks)
   b. How does a microphone work as an input device? (5 marks)