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Computer vision syndrome (CVS) is a condition resulting from focusing the eyes on a computer or other display device for protracted, uninterrupted periods of time and the eye's muscles being unable to recover from the constant tension required to maintain focus on a close object.
A GUI has characters and graphics drawn on the screen at particular positions, and therefore there is no purely textual representation of the graphical contents of the display. Screen readers were therefore forced to employ new low-level techniques, gathering messages from the operating system and using these to build up an "off-screen model ...
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.
Windows and DOS Commercial for Windows; freeware for DOS Includes support for MSAA, the Java Access Bridge, and PDF. Microsoft Narrator: Microsoft Windows Free, Commercial Bundled with recent versions of Windows, this basic screen reader makes use of MSAA. Microsurf: Microsurf: All that run Chrome browser Free Microsurf is a screen reader for ...
Refreshable braille display. 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.
BIOS interrupt calls perform hardware control or I/O functions requested by a program, return system information to the program, or do both. A key element of the purpose of BIOS calls is abstraction - the BIOS calls perform generally defined functions, and the specific details of how those functions are executed on the particular hardware of the system are encapsulated in the BIOS and hidden ...
The results indicated that those who read using the PDF files performed much worse than those reading off of a paper. A conclusion was reached that certain aspects of screen reading, such as scrolling, can impede comprehension. [9] However, not all experiments have concluded that reading from a digitized screen can be detrimental.
Windows 2000 was the first Microsoft operating system released with some degree of accessibility for the blind built in, permitting a blind person to walk up to any such computer and make some use of it immediately. The Windows 2000 version of Narrator uses SAPI 4 and allows the use of other SAPI 4 voices. The Windows XP version uses the newer ...