In scanning input, a light or cursor scans letters and symbols displayed on the screen or an external device. Individuals activate switches to make selections. Special adaptive hardware and software translate Morse code into a form that the computer understands so that standard software can be used. Voice input provides another option for individuals with disabilities. Speech recognition systems allow users to control computers and provide input by speaking words and letters.
Special software can further aid the mobility impaired.
For example, word prediction software can anticipate entire words after several keystrokes thereby increasing the input speed of those with mobility impairments. On-screen help can provide efficient access to user guides for those who cannot turn pages of a book. Cognitive impairments can also restrict a student's abilities to take notes, write reports, and take tests. Computer Use by Individuals with Learning Disabilities Quiet work areas and ear protectors may assist students who are hypersensitive to background noise. In addition, some students with learning disabilities who have difficulty processing written information can benefit from completing writing assignments and tutorial lessons with the aid of a computer.