A braille embosser is, simply put, a printer for braille.
Instead of a standard printer adding ink onto a page, the braille embosser imprints the raised dots of braille onto a page.
Some braille embossers combine both braille and ink so the documents can be read with either sight or touch.

One function of the Ease of Access Center is to help users launch accessibility applications, including Narrator, On-Screen Keyboard, and Magnifier. 
Registered third-party applications also appear in the Ease of Access Center and can be launched directly from there.

Accessibility applications need to work smoothly with the secure desktop.
 The secure desktop is the user interface that appears when the computer is locked, and when the user is prompted to allow a potentially unsafe action. 
For security reasons, Windows places limits on third-party software running on the secure desktop. If you want your accessibility application to run on the secure desktop, you need to register the application with the Ease of Access Center.

Speech recognition is also very useful for people who have difficulty using their hands, ranging from mild repetitive stress injuries to involve disabilities that preclude using conventional computer input devices.
 In fact, people who used the keyboard a lot and developed RSI became an urgent early market for speech recognition. 
Speech recognition is used in deaf telephony, such as voicemail to text, relay services, and captioned telephone. 
Individuals with learning disabilities who have problems with thought-to-paper communication  can possibly benefit from the software but the technology is not bug proof. Also the whole idea of speak to text can be hard for intellectually disabled person's due to the fact that it is rare that anyone tries to learn the technology to teach the person with the disability.