Disabilities had experienced problems when the Windows system was introduced to replace the DOS in the early 1990s. An estimated 145 million worldwide penyadang blind disabilities who are familiar with DOS threatened can not use the computer again.
Lucky, computer companies such big DELL, IBM, Microsoft Corp.., And Sun Microsystems Inc. committed to establishing a product development center for the disabled.
Hardware and software continue to produce each year, although the market is not large.
However, remains the biggest boost should come from George W. Bush, for example, in 2001 a llocated a budget of U.S. $ 1025 billion, for 5 years , in order to speed up access to the computer with disabilities.
In the U.S. alone, an estimated 49 million persons with disabilities.
blind disability is the most difficulty groups. For those programs required by the enlargement of the screen, the reader menu graphics and text on the screen, voice commands, and the reader's computer applications.
For tuna skilled, especially the difficult using the keyboard, the mouse developed dozens of specially designed according to disability level users.
There are works by voice command, a step on the pedal, the head motion sensor or mouse with a clickable mouth movement by blowing.
Specific computer programs are also useful for training children with cognitive disorders such as diseleksia. With practice help build a simple form, they will be used to set the body to use more remote computers.