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A Specialized computer tray is used by people who are in wheelchairs and struggle to sit under a desk so they have a computer tray that is easier to access. There is room for a keyboard and the mouse.

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A Puff and Suck switched will be normally used by people who are motor impaired can have a loss or limitation of function in muscle control or movement. This includes arthritis, paralysis or loss of limbs. It is used by being placed in the mouth and blown or sucked through.

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Textual cues is normally found on websites that include images. For example if you was on a website you could just hover your mouse over one of the images and it would explain what that image is without explaining it to you or using speech. The person who is reading of the website will then understand what the image is.

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The Impulse sensor is an EMG which is known as an Electromyography sensing electrode that senses EMG activity, which is made up from tiny electrical potentials that are made by muscles and the nerve system when muscle contractions occur. An Impulse switch is used by the impulse detects and wireless transmits the EMG signal to the computer just by using Bluetooth.

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A specialised computer chair is used for people who struggle to sit on a normal office chair as their back isn't use to how it is structured. So you can get specialised computer chairs that you can personalize so it is comfortable for the person needing it. This will then benefit the person who needs the specialised computer chair because they won't get a painful back or neck anymore. Teachers or anyone who works in an office can be seen using them to help them.

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Predictive text is an input technology that facilitates typing on a mobile device by suggesting words the end user may wish to insert in a text field. Predictions are based on the context of other words in the message and the first letters typed. This can be used by people may have dyslexia that struggle to spell words would normally have it turned on their mobile phones.

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In Windows Vista the On-Screen Keyboard is an application which provides a visual keyboard on your display screen that can be used in place of a physical keyboard. The On-Screen Keyboard can be manipulated by the mouse or other pointing device and can be configured in three layouts. This can be used by people who are not able to use a keyboard so they would just prefer an on screen keyboard so they just need to click the screen.

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Speakers are one of the most common output devices used with computer systems. Some speakers are designed to work specifically with computers, while others can be hooked up to any type of sound system. Regardless of their design, the purpose of speakers is to produce audio output that can be heard by the listener. Speakers can be useful when it comes to someone who has a hearing impairment because they can use voice over to help them use the computer.

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Camera Mouse is a free program available at cameramouse.org that allows you to control the mouse pointer on the screen just by moving your head. All you need is a webcam and a Windows computer. Clicking is done by "dwell time", by holding the mouse pointer over a small area of the screen for a second.

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An alternative keyboard is any type of computer keyboard that has been redesigned to prevent muscle strain. A standard computer keyboard’s flat layout may cause certain users to position their hands and wrists in unnatural or awkward positions that can potentially lead to musculature injuries. Alternative keyboards come in a variety of designs to alter the positioning of a user’s wrists and hands to ensure they remain straight while typing.

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https://media.padletcdn.com/v13/image/a_exif,c_limit,dpr_1.0,h_204,w_363/https%3A%2F%2Fimages-na.ssl-images-amazon.com%2Fimages%2FI%2F41%252BTU5aPyDL.jpg
https://media.padletcdn.com/v13/image/a_exif,c_limit,dpr_1.0,h_366,w_366/http%3A%2F%2Fliveimageserver.dlf.org.uk%2Fmee%2F%2Fproducts%2Ffull%2F0105619.jpg
https://media.padletcdn.com/v13/image/a_exif,c_limit,dpr_1.0,h_214,w_366/http%3A%2F%2Fwww.isunshare.com%2Fimages%2Farticle%2Fwindows-10%2F4-ways-to-open-ease-of-access-center-in-windows-10%2Fopen-ease-of-access-center-in-control-panel.png
https://media.padletcdn.com/v13/image/a_exif,c_limit,dpr_1.0,h_244,w_366/http%3A%2F%2Fwww.teach-ict.com%2Fimages%2FBT105-ATFSx2-PB300x200.jpg
http://www.marcofolio.net/images/stories/fun/other/qwerty_alt/goldtouch.jpg
http://www.cameramouse.org/media/images/CameraMouse2016.png
http://audioengineusa.com/P4B-front_3.jpg
http://as-ict.weebly.com/uploads/3/9/3/7/39377253/2927964.jpg
http://www.slideshare.net/Riz26/ict-for-the-disabled
http://www.mkprosopsis.com/Products.htm

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For use with computers,

analogue audio must be converted into digital signals. This requires analog-to-digitalconversion. For a computer to decipher the signal, it must have a digital database, or vocabulary, of words or syllables, and a speedy means of comparing this data with signals. The speech patterns are stored on the hard drive and loaded into memory when the program is run. A comparator checks these stored patterns against the output of the A/D converter. This could be used for someone who struggles to use their hands on the phone or for someone who is blind. Siri is a good example of a voice recognition, however it is only available on iPhones. You can access it by holding down on the home button or you can go into settings and you can activate siri by just saying "hey siri" and it will talk back to you and ask what you need help with.

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Textual cues are commonly used in illustrated text documents to link content written in words with relevant content depicted in illustrations.

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Standard computer mice require constant movement of the hand, wrist and arm to operate. As such, they pose many problems for people of all age groups with disabilities. In addition, users who spend long periods at the computer can develop repetitive strain injury as a consequence of this constant mouse movement. A joystick is basically replacing the mouse on the computer and making it easier for the person who has a disability.

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A foot mouse / control can be used by a person who has limited or no use of their hands or arms.
Most foot mice consist of two segments. One segment will be used to control the cursor, the second segment is used to click the mouse or to select shortcuts.
Most foot mice include straps that help to hold the device in place on the foot during use. A long cable runs from the mouse and plugs into the computer via a USB port.

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A Braille keyboard is a special type of keyboard, usually featuring raised dots, that is used by visually impaired people to enter data into the computer. In contrast to the standard keyboard, Braille keyboards have a single key that represents each dot.

To enter a single character into a Braille keyboard, an individual presses a combination of keys at once. A Braille keyboard also includes a space bar just like standard keyboards. However, it is common to find blind people using the standard keyboard instead of the Braille one. They do this after remembering the keys on the standard keyboard. Braille keyboards are, however, very useful to newly blind individuals who may not have remembered the keys on the standard keyboard.

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Ease of access is a software that is already on your computer. You can find it by clicking the start button on your bottom left corner then clicking onto control panel.

Ease of Access is a Control Panel applet included in Windows Vista and later. The keyboard shortcut for invoking Utility Manager or Ease of Access is Windows + U . The command-line shortcut (used in Windows Command Prompt or Run command) is utilman .