Examination on Computer Studies
Class: JSS 2
Term: First Term
Time: 1 Hour
Total Marks: 70

SECTION A: OBJECTIVES (40 Marks)
Instruction: Answer all questions.

1. ________ refers to the physical components of a computer system. (a) Software (b) Hardware (c) Peopleware (d) Firmware
2. Which of the following is an example of an input device? (a) Printer (b) Monitor (c) Mouse (d) Speaker
3. The brain of the computer is also known as the ________. (a) RAM (b) ROM (c) CPU (d) Hard Disk
4. All of these are types of computer software except ________. (a) System software (b) Application software (c) Peopleware (d) Utility software
5. Which of these is NOT a characteristic of a computer? (a) Speed (b) Accuracy (c) Intelligence (d) Versatility
6. The main reason for using an operating system is to ________. (a) Create documents (b) Play music (c) Manage computer resources (d) Design graphics
7. The correct step to convert a decimal number to binary is to ________. (a) Multiply by 2 (b) Divide by 2 and note remainders (c) Add 2 (d) Subtract 2
8. Which of these is not a type of computer classified by size? (a) Microcomputer (b) Minicomputer (c) Analog computer (d) Supercomputer
9. A set of instructions that tells the computer what to do is called ________. (a) Hardware (b) Software (c) Data (d) Information
10. The smallest unit of data in a computer is a ________. (a) Byte (b) Nibble (c) Bit (d) Kilobyte
11. Which of the following is an example of system software? (a) Microsoft Word (b) VLC Media Player (c) Google Chrome (d) Linux
12. Computer generation that used vacuum tubes is the ________ generation. (a) First (b) Second (c) Third (d) Fourth
13. The ________ is responsible for controlling and coordinating all operations within the CPU. (a) ALU (b) Control Unit (c) Registers (d) Cache
14. An example of a non-volatile storage device is a ________. (a) RAM (b) Cache (c) Hard Disk Drive (d) Register
15. All of these are functions of an operating system except ________. (a) Memory management (b) Processor management (c) Creating web pages (d) Device management
16. Which is NOT a type of computer professional? (a) Programmer (b) System Analyst (c) Carpenter (d) Network Administrator
17. The binary equivalent of decimal 7 is ________. (a) 101₂ (b) 110₂ (c) 111₂ (d) 100₂
18. A computer that processes continuous data is known as an ________ computer. (a) Digital (b) Analog (c) Hybrid (d) Micro
19. Which of the following refers to the human users of a computer system? (a) Hardware (b) Software (c) Firmware (d) Peopleware
20. One Gigabyte (GB) is equal to ________ Megabytes (MB). (a) 1000 (b) 1024 (c) 1048 (d) 100
21. A computer professional who writes computer programs is called a ________. (a) Data Entry Operator (b) Programmer (c) Database Administrator (d) Web Designer
22. ________ computers are designed to perform complex calculations at high speeds. (a) Micro (b) Mini (c) Mainframe (d) Super
23. The ________ generation of computers used Integrated Circuits (ICs). (a) First (b) Second (c) Third (d) Fourth
24. Which of these is NOT an output device? (a) Speaker (b) Projector (c) Microphone (d) Printer
25. The process of converting binary 1010₂ to decimal results in ________. (a) 8 (b) 9 (c) 10 (d) 11
26. A program like Microsoft Excel is an example of ________ software. (a) System (b) Utility (c) Application (d) Operating
27. The main function of the Arithmetic Logic Unit (ALU) is to perform ________. (a) Input/output operations (b) Control operations (c) Arithmetic and logical operations (d) Storage operations
28. All of these are examples of operating systems except ________. (a) macOS (b) Ubuntu (c) Android (d) Adobe Photoshop
29. A nibble consists of ________ bits. (a) 2 (b) 4 (c) 8 (d) 16
30. The ability of a computer to perform tasks accurately without errors is called ________. (a) Speed (b) Diligence (c) Accuracy (d) Versatility
31. Which of the following is a volatile memory? (a) ROM (b) Hard Disk (c) RAM (d) Flash Drive
32. The octal equivalent of decimal 15 is ________. (a) 17₈ (b) 16₈ (c) 15₈ (d) 13₈
33. A computer that combines features of both analog and digital computers is a ________ computer. (a) Micro (b) Hybrid (c) Mainframe (d) Quantum
34. Which is NOT a component of the CPU? (a) ALU (b) Control Unit (c) Registers (d) Monitor
35. The computer’s ability to perform the same task repeatedly without getting tired is known as ________. (a) Speed (b) Accuracy (c) Diligence (d) Reliability
36. An example of utility software is a ________. (a) Word processor (b) Antivirus program (c) Web browser (d) Spreadsheet
37. The ________ is a temporary storage area within the CPU. (a) Hard disk (b) RAM (c) Register (d) ROM
38. Which of these is not a common type of data representation in computers? (a) Binary (b) Octal (c) Decimal (d) Hexadecimal
39. The main purpose of firmware is to ________. (a) Run applications (b) Provide basic control for hardware (c) Manage files (d) Connect to the internet
40. What is the decimal equivalent of binary 1101₂? (a) 11 (b) 12 (c) 13 (d) 14

SECTION B: THEORY (30 Marks)
Instruction: Answer any THREE questions.

1. (a) Define a computer system. (2 marks)
(b) Differentiate between hardware and software, providing one example for each. (3 marks)
(c) List and briefly explain any two types of software. (3 marks)
(d) State two characteristics of a computer. (2 marks)

2. (a) What is an Operating System (OS)? (2 marks)
(b) List and briefly explain any two functions of an Operating System. (3 marks)
(c) Give two examples of input devices and two examples of output devices. (3 marks)
(d) Explain the term “Peopleware” in a computer system. (2 marks)

3. (a) Define the term “data representation” in computers. (2 marks)
(b) Convert the decimal number 13 to its binary equivalent. Show your workings. (3 marks)
(c) Explain the difference between volatile and non-volatile memory, giving one example of each. (3 marks)
(d) Briefly explain what a “Byte” is in computer storage. (2 marks)

4. (a) Classify computers based on their type, listing two types. (2 marks)
(b) Briefly describe two generations of computers, highlighting a key technology used in each. (3 marks)
(c) List three advantages of using computers in society. (3 marks)
(d) Identify two types of computer professionals and state one role for each. (2 marks)

Objective Marking Scheme

Question 1 – ✅ (b) Hardware
Question 2 – ✅ (c) Mouse
Question 3 – ✅ (c) CPU
Question 4 – ✅ (c) Peopleware
Question 5 – ✅ (c) Intelligence
Question 6 – ✅ (c) Manage computer resources
Question 7 – ✅ (b) Divide by 2 and note remainders
Question 8 – ✅ (c) Analog computer
Question 9 – ✅ (b) Software
Question 10 – ✅ (c) Bit
Question 11 – ✅ (d) Linux
Question 12 – ✅ (a) First
Question 13 – ✅ (b) Control Unit
Question 14 – ✅ (c) Hard Disk Drive
Question 15 – ✅ (c) Creating web pages
Question 16 – ✅ (c) Carpenter
Question 17 – ✅ (c) 111₂
Question 18 – ✅ (b) Analog
Question 19 – ✅ (d) Peopleware
Question 20 – ✅ (b) 1024
Question 21 – ✅ (b) Programmer
Question 22 – ✅ (d) Super
Question 23 – ✅ (c) Third
Question 24 – ✅ (c) Microphone
Question 25 – ✅ (c) 10
Question 26 – ✅ (c) Application
Question 27 – ✅ (c) Arithmetic and logical operations
Question 28 – ✅ (d) Adobe Photoshop
Question 29 – ✅ (b) 4
Question 30 – ✅ (c) Accuracy
Question 31 – ✅ (c) RAM
Question 32 – ✅ (a) 17₈
Question 33 – ✅ (b) Hybrid
Question 34 – ✅ (d) Monitor
Question 35 – ✅ (c) Diligence
Question 36 – ✅ (b) Antivirus program
Question 37 – ✅ (c) Register
Question 38 – ✅ (c) Decimal
Question 39 – ✅ (b) Provide basic control for hardware
Question 40 – ✅ (c) 13