9th class Computer Science and Entrepreneurship, Chapter 1: Introduction to Computational Systems MCQs

1. The primary function of a system is:

1. (A) To work independently
2. (B) To achieve a common goal ✓
3. (C) To create new systems
4. (D) To provide entertainment

2. One of the fundamental concepts of any system is:

1. (A) Its size
2. (B) Its objective ✓
3. (C) Its age
4. (D) Its price

3. An example of a simple system is:

1. (A) Human body
2. (B) A computer network
3. (C) A thermostat regulating temperature ✓
4. (D) The Internet

4. The basic components of a system are:

1. (A) Users, hardware, software
2. (B) Objectives, components, environment, communication ✓
3. (C) Inputs, outputs, processes
4. (D) Sensors, actuators, controllers

5. Which of the following describes the Von Neumann architecture's main characteristic?

1. (A) Separate memory for data and instructions
2. (B) Parallel execution of instructions
3. (C) Single memory store for both program instructions and data ✓
4. (D) Multiple CPUs for different tasks

6. What does ASCII stand for?

1. (A) American Standard Code for Information Interchange ✓
2. (B) Advanced Standard Code for Information Interchange
3. (C) American Standard Communication for Information Interchange
4. (D) Advanced Standard Communication for Information Interchange

7. How many bits are used in the standard ASCII encoding?

1. (A) 7 bits ✓
2. (B) 8 bits
3. (C) 16 bits
4. (D) 32 bits

8. How many bytes are used to store a typical integer?

1. (A) 1 byte
2. (B) 2 bytes
3. (C) 4 bytes ✓
4. (D) 8 bytes

9. Which software is used to enhance system performance and security?

1. (A) Operating system
2. (B) Utility software ✓
3. (C) Application software
4. (D) Device drivers

10. Which of the following is an example of application software?

1. (A) Microsoft Word ✓
2. (B) BIOS
3. (C) Disk Cleanup
4. (D) Device Manager

11. An organized collection of interdependent components working together to perform a specific function is called a:

1. (A) System ✓
2. (B) Tool
3. (C) Machine
4. (D) Group

12. The components of a system are:

1. (A) Independent
2. (B) Unrelated
3. (C) Interdependent ✓
4. (D) Optional

13. The human body is an example of a:

1. (A) Simple system
2. (B) Complex system ✓
3. (C) Mechanical system
4. (D) Closed system

14. A thermostat is an example of a:

1. (A) Complex system
2. (B) Biological system
3. (C) Simple system ✓
4. (D) Closed system

15. Technology in an information system includes:

1. (A) People
2. (B) Hardware and software ✓
3. (C) Policies
4. (D) Buildings

16. Data in an information system refers to:

1. (A) Raw facts and figures ✓
2. (B) Hardware devices
3. (C) Software applications
4. (D) Scientific Theory

17. People in an information system are:

1. (A) Managers
2. (B) Students
3. (C) Users and IT staff ✓
4. (D) Customers

18. Components are known as the ______ of a system.

1. (A) Outputs
2. (B) Environment
3. (C) Building blocks ✓
4. (D) Objectives

19. The purpose of a system is also called its:

1. (A) Component
2. (B) Objective ✓
3. (C) Environment
4. (D) Structure

20. The ______ of a system includes all external factors that affect its operation.

1. (A) Components
2. (B) Objectives
3. (C) Environment ✓
4. (D) Structure