Accessibility (Demo)
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Video Transcription
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>> Hello Cybrarians, welcome back to
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the Linux plus course here at Cybrary,
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I'm your instructor, Rob Gills, and
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in today's lesson we're going
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to be discussing accessibility.
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Upon completion of this lesson,
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you are going to be able to understand
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the accessibility options that are available to
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Linux GUI users and then
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explain what these accessibility options provide.
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Accessibility really addresses accommodations and
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modifications to make the Linux GUI
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work for all potential users.
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There are a lot of
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different settings that are used to make
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the Linux environment more accessible to users,
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especially those with vision impairments,
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as well as physical motion limitations.
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I'm going to touch on some of those here
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>> in this lesson,
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>> but I do recommend that you
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read some more because there are
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quite a few different things that are
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>> available to help.
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>> In terms of accessibility options
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for visually impaired users,
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there are a few things to touch upon.
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The first one is cursor blinking.
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It can change the speed that the cursor
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blinks to make it easier to locate.
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We can also increase that cursor size
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and make texts larger.
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There's concept of a screen reader which
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is going to speak the text on the screen.
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Some examples in Linux are Orca,
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eSpeak, and Emacspeak.
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We also have high contrast
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which increases the brightness of windows,
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but also darkens the text,
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windows edges as well as the cursor,
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and that makes it easier to locate things.
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There's zoom which magnifies the contents
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of the desktop and what's displayed on it,
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as well as an external Braille display being hooked up,
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and we can see that in the picture here on the right.
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In terms of some of the accessibility options
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for users with motion limitations,
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there are a few,
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sticky keys is one that allows you to perform
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keyboard combinations without holding
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down the modifier key.
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For instance, if we wanted to do
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>> Control Z or Control C,
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>> we have to hold down Control and then hit Z.
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In this case, it would allow you just to press control
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once and then hit C or Z,
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and it would make those keys work in
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combination without needing to hold down the one key.
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Slow keys allows for key presses to be
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recorded once the key is held down for a short period,
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so it's not accidentally hit.
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Bounce keys is used to prevent keys
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from accidentally being typed repeatedly.
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Mouse keys can be used if we want to move the mouse
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around and select the keyboard keys with the mouse.
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Then there's also the concept of sound keys,
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sometimes called toggle keys.
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This will just display audio output when Num Lock,
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Caps Lock, or Shift,
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are pressed just to make sure that
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the person using it didn't understands
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>> that that got turned on,
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>> maybe if it got turned on accidentally.
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With that, we've reached the end of this lesson.
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In this lesson we covered accessibility in Linux.
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Then we also talked about the accessibility options
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that are available to Linux users
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>> in what they provide.
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>> Thanks so much for being here and I look
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forward to seeing you in the next lesson.
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