Assistive technology is an umbrella term that includes assistive, adaptive, and rehabilitative devices for people with disabilities or elderly population while also including the process used in selecting, locating, and using them. People who have disabilities often have difficulty performing activities of daily living (ADLs) independently, or even with assistance. ADLs are self-care activities that include toileting, mobility (ambulation), eating, bathing, dressing and grooming. Assistive technology can ameliorate the effects of disabilities that limit the ability to perform ADLs. Assistive technology promotes greater independence by enabling people to perform tasks they were formerly unable to accomplish, or had great difficulty accomplishing, by providing enhancements to, or changing methods of interacting with, the technology needed to accomplish such tasks. For example, wheelchairs provide independent mobility for those who cannot walk, while assistive eating devices can enable people who cannot feed themselves to do so. Due to assistive technology, people with disabilities have an opportunity of a more positive and easygoing lifestyle, with an increase in "social participation," "security and control," and a greater chance to "reduce institutional costs without significantly increasing household expenses."
A refreshable braille display or braille terminal is an electro-mechanical device for displaying braille characters, usually by means of round-tipped pins raised through holes in a flat surface. Visually impaired computer users who cannot use a computer monitor can use it to read text output. Speech synthesizers are also commonly used for the same task, and a blind user may switch between the two systems or use both at the same time depending on circumstances. Deafblind computer users may also use refreshable braille displays.
Perkins School for the Blind, in Watertown, Massachusetts, is the oldest school for the blind in the United States. It has also been known as the Perkins Institution for the Blind.
In human–computer interaction, computer accessibility refers to the accessibility of a computer system to all people, regardless of disability type or severity of impairment. The term accessibility is most often used in reference to specialized hardware or software, or a combination of both, designed to enable use of a computer by a person with a disability or impairment. Specific technologies may be referred to as assistive technology.
A screen reader is a form of assistive technology (AT) which is essential to people who are blind, as well as useful to people who are visually impaired, illiterate, or have a learning disability. Screen readers are software applications that attempt to convey what people with normal eyesight see on a display to their users via non-visual means, like text-to-speech, sound icons, or a Braille device. They do this by applying a wide variety of techniques that include for example interacting with dedicated accessibility APIs, using various operating system features and employing hooking techniques.
Gnopernicus was a free GNOME desktop application that provides Assistive Technologies (AT) for blind and visually impaired users. Gnopernicus is not actively developed anymore and has been replaced by Orca in GNOME.
The Perkins Brailler is a "braille typewriter" with a key corresponding to each of the six dots of the braille code, a space key, a backspace key, and a line space key. Like a manual typewriter, it has two side knobs to advance paper through the machine and a carriage return lever above the keys. The rollers that hold and advance the paper have grooves designed to avoid crushing the raised dots the brailler creates.
Braille music is a Braille code that allows music to be notated using Braille cells so music can be read by visually impaired musicians. The Braille music system was originally developed by Louis Braille.
The Nemeth Braille Code for Mathematics is a Braille code for encoding mathematical and scientific notation linearly using standard six-dot Braille cells for tactile reading by the visually impaired. The code was developed by Abraham Nemeth. The Nemeth Code was first written up in 1952. It was revised in 1956, 1965, and 1972, and beginning in 1992 was integrated into Unified English Braille. It is an example of a compact human-readable markup language.
Visual impairment, also known as vision impairment or vision loss, is a decreased ability to see to a degree that causes problems not fixable by usual means, such as glasses. Some also include those who have a decreased ability to see because they do not have access to glasses or contact lenses. Visual impairment is often defined as a best corrected visual acuity of worse than either 20/40 or 20/60. The term blindness is used for complete or nearly complete vision loss. Visual impairment may cause people difficulties with normal daily activities such as driving, reading, socializing, and walking.
Tactile graphics, including tactile pictures, tactile diagrams, tactile maps, and tactile graphs, are images that use raised surfaces so that a visually impaired person can feel them. They are used to convey non-textual information such as maps, paintings, graphs and diagrams.
Since the Global Positioning System (GPS) was introduced in the late 1980s there have been many attempts to integrate it into a navigation-assistance system for blind and visually impaired people.
West Bengal Electronics Industry Development Corporation Limited (WEBEL) is the government agency responsible for technology development in West Bengal, India. It was incorporated in 1974 with the objective of developing the electronics industry in West Bengal.
Webel Mediatronics Limited (WML) is a subsidiary of WEBEL, and is engaged in the development, manufacturing, and turnkey project execution in the areas of studio and broadcasting systems, industrial electronics, information technology applications, and various systems for the disabled. Based in West Bengal, India, it has in the last 10 years developed and commercialized a host of systems for visually impaired, cerebral palsy-affected, hearing handicapped, and autistic persons.
Dolphin Computer Access is a British company based in Worcester that designs, creates and sells software for people who are blind or have vision and print impairments, dyslexia and other specific learning difficulties. The company was set up in 1986 and now has offices in the United Kingdom, United States, Sweden and Norway. Through the use of Dolphin's screen enlargers, screen readers and braille output, users can operate word processors, spreadsheets, databases and the internet. The company's customers include Microsoft, the Inland Revenue, the BBC, the Royal Air Force, New College Worcester and Vodafone.
Braille technology is assistive technology which allows blind or visually impaired people to do common tasks such as writing, browsing the Internet, typing in Braille and printing in text, engaging in chat, downloading files, music, using electronic mail, burning music, and reading documents. It also allows blind or visually impaired students to complete all assignments in school as the rest of sighted classmates and allows them take courses online. It enables professionals to do their jobs and teachers to lecture using hardware and software applications. The advances of Braille technology are meaningful because blind people can access more texts, books and libraries and it also facilitates the printing of Braille texts.
Accessible publishing is an approach to publishing and book design whereby books and other texts are made available in alternative formats designed to aid or replace the reading process. Alternative formats that have been developed to aid different people to read include varieties of larger fonts, specialised fonts for certain kinds of reading disabilities, Braille, e-books, and automated Audiobooks and DAISY digital talking books.
RoboBraille is a web and email service capable of converting documents into a range of accessible formats including Braille, mp3, e-books and Daisy. The service can furthermore be used to convert otherwise inaccessible documents such as scanned images and pdf files into more accessible formats. RoboBraille has been in operation since 2004 and currently serves thousands of user requests each month from users across the world. The service is available for free for strictly individual, non-commercial use. Institutional use by academic institutions is available through SensusAccess.
The German Central Library for the Blind, abbreviated DZB, is a public library for the visually impaired located in the city of Leipzig, Saxony, Germany. Its collection of 72,300 titles is amongst the largest in the German speaking countries. The institution consists of a lending library, a publishing house, and a research center for barrier-free communication. It also has production facilities for braille books, audiobooks, and braille music. The DZB publishes about 250 new titles annually. Founded in 1894, the DZB is the oldest library for the blind in Germany.
Braigo is a Braille printer design. Braigo version 1.0 uses a Lego Mindstorms EV3 kit, which includes a microprocessor with assorted components such as electric motors, sensors and actuators. Braigo v1.0 was designed by 13-year-old Shubham Banerjee in January 2014, as an entry in 7th grade school science fair project. The model was based on the PLOTT3R, a bonus model released with the EV3 kit and originally designed by Ralph Hempel. The cost was said to be about 350 USD or 250 Euros for the Lego Mindstorms EV3 kit and some extra commonly used hardware whereas a conventional Braille printer retails starting from about US$1,900.
