The third and final input device that must be replaced is the keyboard. However, there are still many other functions that a keyboard performs, including creating text quietly without speaking out loud. Therefore, a person with a disability still requires a functional replacement for the physical keyboard. It completely replaces the functions of the regular keyboard. It contains all the same keys as the physical keyboard, including the Windows and Menu keys.
Numerous options are available to customize the keyboard to a desired look and feel.
It is completely resizable, the colors can easily be changed, there are numerous keyboard layouts, and dozens of other features make it very flexible. Microsoft licensed a simpler version of ScreenDoors with a limited function set for inclusion in Windows 2000. One of the most powerful features of ScreenDoors is its ability to automatically adapt to any language selected in Windows. To help speed text entry, a powerful word prediction window is provided. The software makes intelligent guesses concerning the words that are being typed.