UNIT 1: Introduction to Systems (Syllabus 2025-2026)
Computer Science 9th Class Exercise Solution – UNIT 1: Introduction to Systems Multiple Choice Questions EXERCISE Multiple Choice Questions 1.What is the primary function of a system? a) To work independently b) To achieve a common goal c) To provide entertainment d) To create new systems Answer: b) To achieve a common goal2. What is one of the fundamental concepts of any system? a) Its size b) Its objective c) Its age d) Its price Answer: b) Its objective
3. What is an example of a simple system? a) A human body b) A computer network c) A thermostat regulating temperature d) The Internet Answer: c) A thermostat regulating temperature
4. What type of environment remains unchanged unless the system provides an output? a) Dynamic b) Deterministic c) Non-deterministic d) None of the above Answer: b) Deterministic
5. What are the basic components of a system? a) Users, hardware, software b) Objectives, components, environment, communication c) Inputs, outputs, processes d) Sensors, actuators, controllers Answer: c) Inputs, outputs, processes
6. What concept does the theory of systems aim to understand? a) Hardware design b) System interactions and development over time c) Software applications d) Network security Answer: b) System interactions and development over time
7. What role does the Operating System (OS) play in a computer? a) It performs calculations and executes instructions b) It temporarily stores data and instructions for the CPU c) It receives input from interface components and decides what to do with it d) It provides long-term storage of data and software Answer: c) It receives input from interface components and decides what to do with it
8. Which of the following describes the Von Neumann architecture’s main characteristic? a) Separate memory for data and instructions b) Parallel execution of instructions c) Single memory store for both program instructions and data d) Multiple CPUs for different tasks Answer: c) Single memory store for both program instructions and data
9. What is a disadvantage of the Von Neumann architecture? a) Complex design due to separate memory spaces b) Difficult to modify programs stored in memory c) Bottleneck due to single memory space for instructions and data d) Lack of flexibility in executing instructions Answer: c) Bottleneck due to single memory space for instructions and data
10. Which of the following transports data inside a computer among different components? a) Control Unit b) System Bus c) Memory d) Processor Answer: b) System Bus