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Flow charts are useful diagrams.

Processes 02

Processes turn inputs into outputs, but smart systems react too. Explore how feedback loops help ICT systems adjust, improve accuracy, and keep results on track.

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Fascinating Fact:

Feedback is when output is used to adjust the process, like a thermostat changing heating based on temperature readings.

In KS3 ICT, feedback helps a process correct itself while it is running. Many systems take sensor readings or user responses, compare them to a target, and then change what they do next, so the output stays accurate and consistent.

Key Terms

Feedback: Using the output of a system to change what happens next in the process.
Control system: A system that manages a device by monitoring data and making adjustments.
Sensor: A device that measures a physical value, such as temperature, light, or movement, and converts it into data.

Frequently Asked Questions (Click to see answers)

What is feedback in ICT KS3?

In KS3 ICT, feedback is when a system uses its output, or new readings, to change the next step, helping it stay close to a target result.

What is an example of a feedback loop in computing?

A common example is a thermostat: it reads the temperature, compares it to the set level, and turns heating on or off to keep the room near the target.

How do sensors help ICT control systems?

Sensors provide live data, such as temperature or light level, so a control system can decide whether to increase, reduce, or stop an action to improve the output.

Try These Related Quizzes

1 .

Programs (or procedures) are .......

detailed instructions to do things in a particular order

detailed instructions which can be carried out in any order

plans which only make sense to computer nerds

too complicated to understand

Computers usually follow a sequence of instructions

2 .

Programs (or procedures) are created in which order?

Break into main tasks, create flow charts, write code

Break into main tasks, write code, create flow charts

Create flow charts, break into main tasks, write code

Write code, break into main tasks, create flow charts

The tasks and flow charts help to keep everything to do with the program organised

3 .

Flow charts are a way of showing in diagrams .......

the steps needed to perform some process

a model of a solution to a processing problem

how data moves through a computer system

All of the above

There are many different types of flow chart

4 .

A rectangular box in a program flow chart shows .......

a decision

a process

an input

the start or end

Example: add 1 to counter

5 .

A diamond shape in a program flow chart shows .......

a decision

a process

an output

the start or end

Example: was the code entered valid yes/no

6 .

An arrow in a program flow chart shows .......

a feedback loop

an error situation which needs attention

an input or output of data is occurring

the flow of control is passing in the direction indicated

Flow charts are logical

7 .

A counter value used in a program to trigger an action .......

is a bad idea

is acting as a condition

is acting as a control

is called a variable

Example: If count = 50 then trigger 'FULL' sign to light

8 .

You take a ticket entering a car park and the barrier lifts.

This is an example of automatic control

This is an example of 'Cause and Effect'

This is an example of computer control

This is an example of 'Pay and Display'

The two occurrences are directly linked

9 .

Which of these is not an example of 'Cause and Effect'?

A dog sees a cat and the dog chases the cat

A stone is thrown into a pond and ripples appear

I am walking in the rain and my clothes get wet

The sun is shining and it starts snowing

The sun shining does not cause snow to fall

10 .

Solving a problem by breaking it up into smaller tasks .......

is called 'Bottom-Up Design'

is called 'Top-Down Design'

is called 'Top-Heavy Design'

is called 'Top-Up Design'

This is a very good way of solving any everyday problem, it's not just useful in ICT

You can find more about this topic by visiting BBC Bitesize - Software

Author: Duncan Daish

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