Draw a line to match each Computational Thinking term to its correct definition.

A sat-nav system calculates the fastest route from London to Manchester.

(a) Identify two pieces of information that are essential for the sat-nav to calculate the route.
(b) Identify two pieces of information that are irrelevant to the route calculation and should be removed through abstraction.

Define the term Decomposition.

A school is creating a computer program to manage a Sports Day.
The main program is called SportsDaySystem.

The system needs to do three main tasks:

• Register Students (this involves InputName and AssignHouse).
• Record Results (this involves EnterTime and CalculatePoints).
• Display Winners (this involves ShowHouseWinner and PrintCertificates).

Draw a Structure Diagram to show how this system decomposes.

A developer is creating a mobile game called "Alien Attack".
Complete the Structure Diagram below by filling in the empty boxes to show the decomposition of the GameLoop module.

Branch 1: CheckPlayerInput
Branch 2: ................................................................. (Hint: Moving the characters)
Branch 3: ................................................................. (Hint: Checking if the player has died)
Branch 4: UpdateScore

Explain two benefits of using Decomposition when designing a large computer program.

Algorithmic thinking involves identifying the Inputs, Processes, and Outputs of a system.
A program is being written to calculate the area of a rectangle.
Complete the table below.

Stage	Data / Action
Input
Process
Output

Standard symbols are used to represent algorithms in flowcharts.
State the name of the flowchart symbol used for each of the following actions.

Action	Flowchart Symbol Name
start()
count = count + 1
if score > 10
print(total)

A smart thermostat monitors the temperature of a house.

• If the temperature is below 18°C, the heating turns on.
• If the temperature is above 21°C, the heating turns off.
• Otherwise, no change occurs.

Using Algorithmic Thinking, write a logical plan for this system using pseudocode.

Explain why Abstraction is necessary when creating a simulation of an aeroplane for a flight simulator game.