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Specialized computer tray allows people to use computers and laptops whilst in wheelchairs and if they have some kind of disability that doesn't allow them to move around often, or if they've broken a couple bones and can't move.

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The on screen keyboard is a visual keyboard with all the standard keys that are on a physical keyboard. You can use either a mouse or another pointing device on the keyboard. The keyboard can be resized and moved to make it easier for the user to use.

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Specialized computer chairs allow the user to change certain things about the chair to suit their person. For example they can change the high and slant of the chair to match their height or the height of their desk. Specialized computer chairs are important because they allow people to sit for long hours without getting back ache etc.

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Predictive text allows the user to select a suggestion for your next word. Predictive text uses texts that you have previously used when talking to a specific person.

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Muscle impulse is when electrical impulses are translated into algorithms and techniques which can reproduce a persons handwriting. It allows people to write on any surface without a pen or pencil.

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Puff, suck and switch is created for people with limited physical mobility. You have to suck of puff down the tube in order to use the switch. The switch is connected to a computer, software on the computer can take the puff or suck as input in a number of ways.

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Alternative keypad are different types of keyboard from the original QWERTY keyboard. There are different keyboard for different purposes for example there's a keyboard for left hand type's and a french keyboard which is mainly used during french and Africa. Different keyboard can allow you to type slower whereas some are to allow you type faster and more efficiently.

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Voice recognition listens to the users voice; listens to words or sentences which is then converted into electrical signals and then transformed into coding patterns. Voice recognition allows people who have a bad eyesight or people may not be able to use their hands to use their device. Voice recognition has been improved over the years in products for example phones. In apple products iphones had voice recognition but it was very basic and not very helpful and then after tinkering they now have 'SIRI' which allows the AI to service the user in anyway they can. You will now most probably find voice recognition on most devices from computers, smart televisions and phones.

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Textual cues allow people to understand what certain words mean and offers similar words.

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Using joy stick allows people who are in wheel chairs to access things that they wouldn't be able to do originally, Like booth voting. Joy sticks allows the user to move the mouse pointers around the screen. Using the joy stick uses little energy to use which is perfect for people who don't have great motor skills;.

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A foot mouse can be controlled by someone who has limited control or no use of their arms or legs. The foot mouse can be used to navigate through a computers software and select things just like a conventional mouse. A foot mouse is in two segments, one segment is used to control the mouse cursor and the other segment is to click the mouse.

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Ease of access is on all windows computers. It allows the user to access all of the computers accessibility settings. Such as on screen keyboard and predictive text. The ease of access tab also gives you recommendations on how to make the computer easier to use. Ease of access allows you to optimize their computer to allow them to use the devices. Ease of access also allows you to change things like pointer size and using the keypad instead of a mouse.

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Braille is a raised up language for blind people. The braille keyboard is a device that allows people to input text into a computer. The braille keyboard is just like a normal keyboard, it has a raised dot for each letter and a space bar.

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http://www.cameramouse.org/
http://www.teach-ict.com/as_a2_ict_new/ocr/AS_G061/312_software_hardware/specialist_hwsw/miniweb/pg5.htm
http://www.apple.com/uk/accessibility/ios/
https://www.microsoft.com/enable/products/windows7/
http://www.dummies.com/computers/operating-systems/windows-7/how-to-use-the-on-screen-keyboard-in-windows-7/
https://support.microsoft.com/en-gb/help/17180/windows-10-make-your-pc-easier-to-use
http://www.teach-ict.com/as_a2_ict_new/ocr/AS_G061/312_software_hardware/specialist_hwsw/miniweb/pg2.htm
http://www.hitl.washington.edu/research/knowledge_base/virtual-worlds/oldscivw/EVE/I.D.2.d.VoiceRecognition.html
https://www.cnet.com/uk/how-to/why-you-should-try-an-alternative-keyboard-layout/
http://www.assist-it.org.uk/assets/content/disability.htm

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Camera mouse was developed at Boston College to help disabled people use a computer. It’s a free program that tracks a person’s head to move the computer mouse around the screen, when someone’s head stays over a place this acts as a click. The target audience for this program is people who don’t have reliable control of their hands or arms but can easily move their head. People who cannot use their heads cannot use the program as it tracks the users head movement, so if someone can move their eyes but not their head it won’t work. Camera mouse only works on tablets that are running windows 10, 8.1, 8, 7, vista or xp. It currently doesn’t work on Macintosh devices.

Camera mouse is a mouse replacement system for windows computers and tablets, it’s been designed to work with most applications on a windows device which could be entertainment (games), education program (Microsoft word), communication program (skype) and web browsers.

This is an example of a girl who’s using the program