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C1.1 · Describe adaptive computing technologies

Learn to describe adaptive computing technologies through clear examples and targeted practice.

Ontario Grade 10 Computer Science

Computers and Society

How computers can be adjusted to better meet a user’s needs

A computer does not work equally well for every person or situation. Someone may have difficulty reading small text, hearing spoken instructions, or using a mouse. Adaptive computing technologies are computer hardware or software that can be adjusted, or that provide another way to interact with information, to better suit a user’s needs. In this lesson, we will look at how these technologies change the way information is received, processed, or presented. The goal is to describe how they help—not to assume that one tool works for everyone.

What you will learn

Describe what makes a computing technology adaptive.
Identify how input, process, and output work in an adaptive technology example.
Explain how adaptive technologies can support accessibility in everyday situations.
Choose an adaptive technology that fits a particular user need and explain why.

What makes a technology adaptive?

A technology is adaptive when it lets a user change how a computing system works for them, or offers an alternative way to use it. The adjustment might be a choice the user makes, such as increasing text size, or a different method of interaction, such as using a switch instead of a mouse. The important point is the connection between a user’s need and the way the technology is used.

Think of a student who finds small on-screen text difficult to read. A computer’s text-size setting can make the words larger. The student still reads the same information, but the screen presents it in a way that is easier for that student to use. This setting is adaptive because it changes the presentation to suit the user.

Adaptive technologies can support accessibility: making information and computer use more available to people with different needs. Users’ needs differ, so a useful feature for one person may not be useful for another. It is best to describe a technology by naming the need it can support and the change it makes.

Adaptive technologies adjust computer use or provide another way to interact with it.
Describe the user need and the technology’s response.
The same feature will not suit every user.

Follow the input, process, and output

A simple way to describe a computing technology is to identify its input, process, and output. Input is information or an action that enters the system. Process is what the system does with that input. Output is the information or result the system provides.

For example, a screen reader can help a person who is blind or has low vision access text displayed on a computer. The input is text available on the screen and the user’s command to read it. The process is the screen reader interpreting the text and preparing spoken output. The output is speech heard through speakers or headphones. The screen reader gives the user another way to receive information that would otherwise be presented visually.

This description does not mean that a screen reader can interpret every item on every screen perfectly. Some content may not be available in a form the tool can read clearly. The example describes the general purpose of the technology, not a guarantee about every program or page.

Input is what enters the system; process is what it does; output is what it provides.
A screen reader changes text information into spoken output.
A tool can help without working equally well in every situation.

Different needs, different adaptations

Adaptive technologies can change how information is presented or how a user gives instructions. Captions are text displayed with video or other media to show spoken words and, in some cases, relevant sounds. They can help a person who is deaf or hard of hearing follow content. They can also be useful when a viewer cannot turn on the sound. Captions are an alternative way to receive information, rather than a change to the video’s spoken audio.

A switch interface offers another way to control a computer. A person who cannot comfortably use a mouse might use a switch that sends a simple selection command. The computer can provide a way to move through choices and select one. The user’s action is different, but the system still receives input and provides an output.

Some adaptations are chosen directly by the user; others depend on compatible equipment or software. When considering a tool, ask what the user needs to do, how the tool changes the interaction, and whether the user can use it in the intended setting. Avoid assuming that a person needs a particular feature based only on a diagnosis or appearance.

Captions provide a text alternative to spoken information.
A switch interface can provide an alternative input method.
Choose and describe adaptations in relation to the task and the user’s needs.

Using adaptive technology thoughtfully

Consider a student watching a lesson video in a quiet library. The student cannot play the audio, so captions let them follow the spoken explanation by reading it. The adaptation supports access to the lesson without changing its subject. If the captions are missing or inaccurate, the support may be less effective; checking that captions are available is a practical part of choosing the technology.

Privacy can matter too. A tool that listens for spoken commands may need access to a microphone. A user should understand which input the tool uses and follow the device or school’s privacy guidance. This does not mean the tool is unsafe; it means that selecting an adaptive feature includes considering how it works in the user’s setting.

To describe an adaptive technology clearly, use a short pattern: name the user need, name the tool, and explain how the tool changes input, processing, or output. For example: “Captions support a viewer who cannot hear the video by displaying spoken words as text.”

Check that the adaptation is available and suitable for the task.
Consider privacy when a feature uses input such as a microphone.
A clear description links a need to the technology’s response.

Worked example

A screen reader reads on-screen text

A student who has difficulty reading text visually wants to access a short instruction shown on a computer. Describe how a screen reader can help using input, process, and output.

Screen reader: text to speech

The screen reader processes available text and provides speech as an alternative output.

Identify the need
The student needs a way to receive written information that does not depend on reading it visually.
Describe the system
The input is the on-screen text and the student’s command to read it. The screen reader processes the text and produces spoken output through speakers or headphones. The student receives the instruction by listening.

Answer: A screen reader can help by turning available on-screen text into spoken output. Its input is the text and a read command; it processes the text; its output is speech.

Check: This description names the need and explains how the technology changes the way information reaches the user. It does not claim that every on-screen item will always be read correctly.

Worked example

Captions in a quiet setting

A student is watching a class video where audio cannot be played. Explain how captions could help and identify the input and output.

Captions provide text

Spoken content is represented as on-screen text for the viewer.

Connect the situation to a need
The student needs to follow spoken information without playing the audio aloud.
Explain the adaptation
The video’s spoken content is the information being represented. Captions display words as text on the screen, giving the student a visual way to follow the content. The student should check that captions are available and clear enough for the video.

Answer: Captions can help by presenting spoken information as text. The video’s spoken content is the information being represented, and the caption text is an alternative visual output for the viewer.

Check: The example describes captions as an alternative presentation of spoken information, not as a change to the video’s audio.

Worked example

Choosing an alternative input method

A user has difficulty operating a mouse and needs to select an item on a computer. Explain how a switch interface might provide an alternative way to interact.

Switch as an alternative input

A switch sends a selection command to the computer, which provides a response.

Name the user’s task
The user needs to select an item, but using a mouse is difficult for them.
Match the adaptation to the task
A switch interface can provide a different input method. The user activates the switch to send a selection command, and the computer responds by selecting an item. The exact setup depends on the interface and the user’s needs.

Answer: A switch interface may help by letting the user send a selection command without relying on a mouse. It changes the way input is given while still allowing the computer to respond to the selection.

Check: The example connects the alternative input to a specific task. It does not suggest that every switch setup works the same way or suits every user.

Common mistakes and how to avoid them

Calling any computer feature adaptive without explaining who it helps or how it changes computer use.

Correction: Name the user need and describe the adjustment or alternative interaction the feature provides.

Assuming one adaptive technology works for every person with a similar need.

Correction: Explain that users and situations differ, and that a tool’s suitability depends on the task and the user.

Saying a screen reader reads every item on every screen perfectly.

Correction: Describe its general purpose—making available text accessible as speech—without promising that all content will be interpreted clearly.

Treating captions as audio or as a change to the video’s spoken content.

Correction: Captions present spoken information as text that a viewer can read.

Lesson summary

Adaptive computing technologies adjust computer use or provide another way to interact with information.
Input, process, and output help explain how an adaptive technology works.
Screen readers can present available text as speech; captions can present spoken content as text; switch interfaces can offer another way to give input.
A strong description connects a particular user need with the technology’s response and avoids claiming that one tool works for everyone.

Check your understanding

Question 1

Which description best explains how captions can be adaptive?

They present spoken information as text for a viewer who needs or prefers a visual way to follow it.
They make all video information available to every viewer without any limitations.
They replace the user’s need to understand the video.
They change the viewer’s input device into a speaker.

Show answer and explanation

They present spoken information as text for a viewer who needs or prefers a visual way to follow it.

Captions provide a text presentation of spoken information. The other choices either overstate what captions can do or confuse their purpose.

Question 2

In the screen-reader example, which item is an output?

The student’s command to read.
Text available on the screen.
Speech heard through speakers or headphones.
The student’s need for a different way to access text.

Show answer and explanation

Speech heard through speakers or headphones.

The speech is the result provided to the user, so it is the output. The text and read command are inputs.

Question 3

A person finds mouse use difficult and needs to select an item. Which explanation best matches a switch interface to that situation?

It can provide an alternative way to send a selection command.
It guarantees that the person will never need computer input.
It changes captions into spoken output.
It makes every computer task work the same way.

Show answer and explanation

It can provide an alternative way to send a selection command.

A switch interface can offer an alternative input method for a selection task. It does not remove all input needs or guarantee that every task works identically.

Key terms

Adaptive computing technology: Computer hardware or software adjusted, or used in an alternative way, to better suit a user’s needs.
Accessibility: The extent to which people with different needs can use a technology or access its information.
Input: Information or an action that enters a computing system.
Process: What a computing system does with input.
Output: Information or a result provided by a computing system.
Screen reader: Software that can present available on-screen text as spoken output.
Caption: Text displayed with media to represent spoken words and, in some cases, relevant sounds.
Switch interface: An alternative input method that can let a user send a simple command, such as selecting an item.

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About this lesson and its review

Published by DoAssignment. This reviewed lesson follows Ontario Grade 10 Computer Science (ICS2O), expectation C1.1. It is a study resource, not an official curriculum publication.

Before publication, content is checked for structure, mathematical or chemical notation, calculations, course boundaries, and readability. Errors can still occur, so corrections are welcomed.

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