PAE(03/17/25): Components of Technological Systems

Which of the following best explains a technological system?

• A single device that works independently

• A set of components that work together to achieve a specific purpose

• A system that only works with human input

• A machine that requires no energy

Why is an input necessary in a technological system?

• It provides the resources needed for the system to function

• It ensures the system does not produce outputs

• It keeps the system from interacting with the environment

• It prevents the system from using energy

Describe the purpose of a process in a technological system.

• It interprets inputs and makes decisions to produce outputs

• It stores all inputs without using them

• It releases energy without control

• It removes all outputs from the system

Which of the following is an example of an output in a technological system?

• A microprocessor running software

• A computer screen displaying information

• A battery providing power

• A human pressing a button

Explain why feedback is important in a technological system.

• It prevents the system from making changes

• It helps the system improve its performance by adjusting based on outputs

• It blocks any external inputs from affecting the system

• It removes outputs before they can be used

Which of the following best describes an open system?

• A system that does not interact with its surroundings

• A system that exchanges energy and matter with its environment

• A system that only receives inputs but does not release outputs

• A system that is completely isolated

Why is a thermostat considered a feedback system?

• It adjusts the room temperature based on sensor data

• It produces heat but does not change settings

• It works without any external input

• It only releases energy without control

An example of an input in a technological system is:

• a) A printed receipt from an ATM

• b) A user pressing a button on a remote control

• c) A computer displaying an error message

• d) A smartphone ringing

Which of the following is an example of an open system?

• A closed water heating system

• A smartphone that receives calls and sends messages

• A battery that stores and releases energy

• A sealed cooling system

Explain how an ATM processes a transaction.

• It prints receipts without verifying data

• It only stores user information without processing it

• It verifies the user’s PIN, checks balance, and dispenses money

• It provides access without requiring a password