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The best tools Accessibility A
The best tools Accessibility A
A computer is accessible to the extent that a person can use it regardless of their mental and physical limitations. The first personal computers were hostile monsters , with tiny screens and without contrast, some ergonomic keyboards and operating systems for which it was very simple show Graphic display: accessibility was zero.
The situation has changed greatly in recent years. More and more sensitized to the issue, manufacturers and developers have steadily increased the accessibility of their products. Windows began to be widely available in version 3, when it included some high contrast subjects. Fifteen years later, having read the text by adding speech synthesis in all versions.
The improvements, however, only serve to get that approved. Because of the many types of disabilities exist, convert Windows into a system accessible requires the combination of several tools . But the good news: many of them are free.
Vision problems
Computers are visual, nearly all the information is presented on a screen of variable size. People with low vision, for example, must deal with tiny text and microscopic controls. There are many tools available on the type of vision problem and the scope.
Magnifiers and readers aloud
Enlarge the image is a classical approach. There are many magnifiers free, but the strongest are Virtual Magnifying Glass and Dragnifier . Find more in the excellent page magnifiers Magnifiers.org . Logitech and Microsoft, major mouse manufacturers, distributes magnifiers with their mouse and keyboard drivers are easier to invoke the standard magnifiers.
Dragnifier en accion
If expanders were not enough, there are programs that take advantage of the TTS ( Text-To-Speech ) for reading with a synthetic voice everything you see on screen. DSpeech , despite the spartan interface is one of the most used, but you can also try the superb JAWS , compatible with output devices in braille . Balabolka is another interesting option. "The biggest problem? The voices, which often require a fee.
DSpeech
Windows has its own magnifier , but their quality leaves much to be desired. Other built-in accessibility options are the subjects of high contrast in Display Properties, increase the number of dots per inch (DPI) in the graphics adapter properties or activate specific accessibility options. XP and Vista also have a screen reader engine, the Narrator .
Firefox Extensions
In the wide selection of Firefox extensions add-ons could not miss accessibility. The project Access Firefox brings together all the themes, extensions and tricks used to make Firefox browser more accessible. If you thought that all he could do was to use the shortcuts to increase the font size (Ctrl + + and Ctrl + -), you're wrong.
El aspecto de HiViS Large
Among the most notable additions are HiVis Large , a subject of great size, Noise , adding sounds to all actions, and the awesome Firefox Accessibility Extension , a pack with more than fifty accessibility improvements. Few browsers can boast greater sensitivity towards the vision problems.
Other browsers, on the other hand, seem to have fallen behind. Firefox and Internet Explorer have Browsealoud , a free plug for you to read the text of web pages (including DOC and PDF files).
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Post je objavljen 04.07.2011. u 12:14 sati.