Adaptive Technologies

My class receives assignments from my teacher every Tuesday and last Tuesday I received an assignment where I was supposed to choose three adaptive technologies and explain how they improve computer accessibility for people who are disabled or incapable of using a computer normally.
The first adaptive technology which I believe improves computer accessibility is speech-to-text technologies.  I believe that this adaptive tech is very important because it allows all people who have a microphone to use this tech where when you speak into the microphone and the tech changes the speech into text and outputs it to your monitor.  This tech allows people who have trouble typing and people who are deaf this speech-to-text will allows them to visually see what is being said to them which makes speech-to-text a very excellent adaptive tech to use to make computers more accessible.  Many hospitals use speech-to-text because many doctors may not know sign language so then speech-to-text makes it easier for the deaf patients to understand them.
The next adaptive technology i chose which I believed is a great adaptive tech is text-to-speech technology also known as the speech synthesizer.  Which is a computer program that is added to your computer hardware or software.  What the speech synthesizer does is that it takes any text, maybe from a word document, a blog, off of Facebook, or wherever text is and it converts the text into speech using an artificial voice it outputs the text to speech through the speakers.  This synthesizer already has pre-loaded words in its database which are then pulled and used.  The text-to-speech tech is an excellent tech because it can be used for blind people you cant see but can still hear and this way they can hear the synthesizer.
The final adaptive technology I chose was a ergonomic keyboard.  Which is an actual keyboard but it is designed in a fixed-split way where there is two groups of keys on the same keyboard but unlike a typical straight keyboard it is curved and at a certain angle to relieve muscle stress.  This is an excellent tech because it is wonderful for people who have muscle strains or arthiritus.
This concludes my choices of Adaptive Technologies.