Unit 4 : Computers - Machines and Computational models

Multiple Choice

What is the role of a computer in the input–process–output model?

• A) To only store data

• B) To take input, process it, and produce output

• C) To only provide output

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  D) To act as an embedded system only

Multiple Choice

In a desktop computer, which of the following is an example of input?

• A) Screen display

• B) Keyboard typing

• C) Printed paper

• D) Speaker sound

Multiple Choice

An embedded computer in a washing machine uses:

• A) The motor and heater as input, and the control panel as output

• B) The control panel as input, and the motor and heater as outputs

• C) The motor and heater as input, and clothes as output

• D) The screen as input, and keyboard as output

Multiple Choice

What is an embedded computer?

• A) A computer that performs many tasks simultaneously

• B) A general-purpose computer used for office work

• C) A computer built into another machine to control its functions

• D) A computer that only stores large amounts of data

Multiple Choice

Which of these is an example of an embedded system?

• A) Desktop computer

• B) Washing machine control panel

• C) Laptop

• D) Tablet

Multiple Choice

In a washing machine’s embedded system, which acts as the input?

• A) Heater and motor

• B) Water supply

• C) Clothes

• D) Control panel

Multiple Choice

Which of the following describes the process stage of a computer system?

• A) Performing calculations and logical operations

• B) Accepting data from the user

• C) Displaying results on screen

• D) Storing results permanently

Multiple Choice

What is an embedded computer?

• A) A computer that performs many tasks simultaneously

• B) A general-purpose computer used for office work

• C) A computer that only stores large amounts of data

• D) A computer built into another machine to control its functions

Multiple Choice

In computer science, what does processing mean?

• A) Accepting input data from the user
  
  
  

• B) Displaying results as output

• C) Performing a series of actions on inputs according to a set of rules

• D) Storing data permanently

Multiple Choice

What is meant by input in computing?

• A) Changing the meaning of data

• B) A diagram that represents operations

• C) Displaying processed data

• D) Entering data into a computer

Multiple Choice

What does a function machine represent?

• A) A program that stores values

• B) A process that changes data format

• C) A metaphor/diagram that takes input, applies rules, and delivers output

• D) A memory device inside the computer

Multiple Choice

Which of the following best describes output?

• A) Entering data into the system

• B) Changing the meaning of data

• C) Displaying or outputting data after processing

• D) Storing unprocessed information

Multiple Choice

What does the example (3 → ×2 → +2 → 8) illustrate about an algorithm?

• A) It is a sequence of step-by-step instructions to process input into output

• B) It is a random guess to get an answer

• C) It only works for multiplication problems

• D) It does not require following any rules

Multiple Choice

In the extended Input–Process–Output model, what is the role of storage?

• A) To display processed data

• B) To temporarily hold data during processing

• C) To provide input to the system

• D) To act as the final output

Multiple Choice

What does a computational model describe?

• A) How data is stored in memory

• B) How algorithms are executed using inputs and outputs

• C) How computers are physically built

• D) How people interact with machines

Multiple Choice

In a sequential model, how are instructions followed?

• A) All at the same time

• B) Randomly

• C) By multiple processors working together

• D) Step by step, in order, from start to finish

Multiple Choice

Which model distributes tasks between two or more processors?

• A) Sequential model
  
  
  

• B) Parallel model

• C) Multi-agent model

• D) Computational model

Multiple Choice

In the multi-agent model, what is the role of each agent?

• A) To act independently but cooperate through negotiation and coordination

• B) To process parts of the same task in parallel

• C) To follow instructions step by step

• D) To only store data and not process it

Multiple Choice

Which model is closely linked to the basis of artificial intelligence (AI)?

• A) Sequential

• B) Parallel

• C) Multi-agent

• D) Computational

Multiple Choice

According to the passage, what is the role of an agent (computer program)?

• A) To only display internet results faster

• B) To replace human preferences in decision-making

• C) To gather information, compare options, and perform tasks on our behalf

• D) To store data permanently without processing

Answers