Scanning input: A switch-based method of controlling a computer. Activations of a switch will, in order, bring up a control panel that upon subsequent switch activations, allow a user to focus in on a desired control or keystroke. Custom scanning layouts can be created for a variety of purposes and programs and may also be used in a communication device.

Screen enlargement: Hardware or software that increases the size of characters and text on a computer screen.

Screen reader: Software used to echo text on a computer screen to audio output, often used by people who are blind, with visual impairments, or with learning disabilities.

Screen resolution: Refers to the clarity or sharpness of an image. For computer monitors, this term indicates the number of dots on the screen used to create text and graphics. Higher resolution means more dots, indicating increased sharpness and potentially smaller text.

Section 14 (1994): Section of the ADAAG containing proposed accessibility guidelines for public rights-of-way (now reserved).

Section 504 (1973): The section of the Rehabilitation Act that prohibits discrimination by any program or activity conducted by the federal government.

Section 508 of the Rehabilitation Act: Legislation that requires federal agencies to develop, procure, and use accessible electronic and information technology.

Sensory impairment: A disability that affects touch, sight, or hearing, or both.

Server: Any computer that stores information that is available to other users, often over the Internet.

Service animals: are *dogs that are individually trained to perform tasks for people with disabilities such as guiding people who are blind, alerting people who are deaf, pulling wheelchairs, alerting and protecting a person who is having a seizure, or performing other special tasks. Service animals are working animals, not pets.  *See this federal fact sheet.

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