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 standard computer monitor can use it to read text output. Deafblind computer users may also use refreshable braille displays.
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 the use of a computer by a person with a disability or impairment.
A screen reader is a form of assistive technology (AT) that renders text and image content as speech or braille output. Screen readers are essential to people who are blind, and are 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 provided Assistive Technologies (AT) for blind and visually impaired users. Gnopernicus is no longer actively developed and has been replaced by Orca in GNOME.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.
Narrator is a screen reader in Microsoft Windows. Developed by Professor Paul Blenkhorn in 2000, the utility made the Windows operating system more accessible for blind and visually impaired users.
Job Access With Speech (JAWS) is a computer screen reader program for Microsoft Windows that allows blind and visually impaired users to read the screen either with a text-to-speech output or by a refreshable Braille display. JAWS is produced by the Blind and Low Vision Group of Freedom Scientific.
Microsoft Active Accessibility (MSAA) is an application programming interface (API) for user interface accessibility. MSAA was introduced as a platform add-on to Microsoft Windows 95 in 1997. MSAA is designed to help Assistive Technology (AT) products interact with standard and custom user interface (UI) elements of an application, as well as to access, identify, and manipulate an application's UI elements. AT products work with MSAA enabled applications in order to provide better access for individuals who have physical or cognitive difficulties, impairments, or disabilities. Some examples of AT products are screen readers for users with limited sight, on screen keyboards for users with limited physical access, or narrators for users with limited hearing. MSAA can also be used for automated testing tools, and computer-based training applications.
ZoomText is a screen magnifier for Microsoft Windows developed by Ai Squared which was acquired by Freedom Scientific in 2016. The first version was released for DOS in 1988, and the first version for Windows was released in 1991. ZoomText is available in two editions: ZoomText Magnifier and ZoomText Magnifier/Reader, which includes a built-in screen reader.
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.
Orca is a free and open-source, flexible, extensible screen reader from the GNOME project for individuals who are blind or visually impaired. Using various combinations of speech synthesis and braille, Orca helps provide access to applications and toolkits that support AT-SPI.
Magnifier, formerly Microsoft Magnifier, is a screen magnifier app intended for visually impaired people to use when running Microsoft Windows. When it is running, it creates a bar at the top of the screen that greatly magnifies where the mouse is. Magnifier was first included as a sample in the Active Accessibility SDK/RDK for Windows 95 and later made a standard Windows utility starting with Windows 98. Prior to Windows Vista, Magnifier could be used to magnify the screen up to 9 times its normal size. Windows Vista and later allow up to 16× magnification.
Dolphin Computer Access Limited 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 read, write, or manipulate braille electronically. This technology allows users to do common tasks such as writing, browsing the Internet, typing in Braille and printing in text, engaging in chat, downloading files and 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 their sighted classmates and allows them to take courses online. It enables professionals to do their jobs and teachers to lecture using hardware and software applications. The advances in Braille technology are meaningful because blind people can access more texts, books, and libraries, and it also facilitates the printing of Braille texts.
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 around the world. The service is available for free for strictly individual, non-commercial use. Institutional use by academic institutions is available through SensusAccess.
Vinux was a Linux distribution which was specially designed for blind and partially sighted users. Specifically it was a remastered version of the Ubuntu distribution and provided users with two screen readers, two full-screen magnifiers, global font-size and colour changing facilities. The system also supported USB Braille displays.
Chieko Asakawa is a blind Japanese computer scientist, known for her work at IBM Research – Tokyo in accessibility. A Netscape browser plug-in she developed, the IBM Home Page Reader, became the most widely used web-to-speech system available. She is the recipient of numerous industry and government awards.
TeamTalk is a conferencing system which people use to communicate on the Internet using VoIP and video streaming.
Accessibility apps are mobile apps that increase the accessibility of a device or technology for individuals with disabilities. Applications, also known as, application software, are programs that are designed for end users to be able to perform specific tasks. There are many different types of apps, some examples include, word processors, web browsers, media players, console games, photo editors, accounting applications and flight simulators. Accessibility generally refers to the design of products and environments to be usable by people with disabilities. Accessibility apps can also include making a current version of software or hardware more accessible by adding features. Accessibility apps aim to reduce barriers to technological goods and services, making them more usable for various groups within society. A basic example is that a person who experiences vision impairments is able to access technology through enabling voice recognition and text-to-speech software.
