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Description: Demonstrate knowledge and awareness of accessibility technologies.
Key Knowledge Areas:
- Basic knowledge of keyboard accessibility settings (AccessX)
- Basic knowledge of visual settings and themes
- Basic knowledge of assistive technology (ATs)
Terms and Utilities:
Sticky/Repeat Keys Slow/Bounce/Toggle Keys Mouse Keys High Contrast/Large Print Desktop Themes Screen Reader Braille Display Screen Magnifier On-Screen Keyboard Gestures (used at login, for example GDM) Orca GOK emacspeak
Braille
it creates a tactile display of textual information in Braille
- BRLTTY driver
- Linux kernels since 2.6.26 include direct support for Braille displays
Keys
Sticky Keys When enabled, this option causes keyboard modifier keys (Ctrl, Alt, and Shift) to "stick" when pressed, affecting the next regular key to be pressed even after release of the sticky key.
Toggle Keys When enabled plays a sound cue when the locking keys (Caps lock, Num lock, or Scroll lock) are pressed.
Mouse Keys This option enables you to use the cursor keypad on your keyboard to emulate a mouse.
Bounce (or Debounce) Keys If a user tends to press a single key accidentally multiple times, the bounce keys option may be able to compensate for this tendency.
Slow Keys When activated, this option requires a key to be pressed for longer than a specified period of time before it registers as a keypress.
GOK
GNOME On-Screen Keyboard (GOK), which not only provides an onscreen keyboard, it also delivers tools that provide shortcuts for the various mouse, menu, and toolbar features of other programs as well as tools to help users navigate the GNOME desktop.
Orca
screen reader GNOME 2.16 and later
Emacspeak
aims to enable those with visual impairments to use Linux
Gestures
Gestures are similar to keyboard shortcuts but are designed for mice. They permit you to activate program options by moving your mouse in particular ways.