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Peripheral devices

Teacher’s notes in the Notes Page

Flash activity (these are not editable) Useful web links in the Notes PageIcons:

Hardware

Worksheet available

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Learning objectives

By the end of this presentation you will have learned:

what peripheral devices are used for

about different input and output devices

how peripheral devices are adapted for specific needs.

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Information produced by output devices

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Standard output devices are not necessarily suitable for use by everyone. Users with impairments may not be able to use output devices as intended.

For example, visual impairment can affect a user’s ability to view information on a display. Solutions include:

screen readers – these identify what is happening on the display and produce an audio description

magnifiers – these make the display larger so that text and images can be read more easily.

Output devices for specific needs

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What can you spot?

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Visual impairment can also affect a user’s ability to operate input devices. Solutions include:

Input devices for specific needs

Input devices also have to be adapted for those with specific needs. For example, motor impairment can affect a user’s ability to operate input devices. Solutions include:

eye-typer – a camera that tracks the focus of the user’s eyes to determine the actions they need to perform.

voice input – commands are spoken into a microphone that trigger actions to be performed by the computer.

Braille keyboard – raised patterns are added to each key.

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Plenary

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