Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Capacitive Touch(also: Capacitive Sensing, Capacitive Touch Sensing)
- A touch detection technology that works by measuring changes in electrical capacitance when a conductive object, such as a human finger, comes near or contacts an electrode surface. The finger and electrode form a capacitor whose capacitance changes upon contact, and this change…
- Charge-Coupled Device(also: CCD)
- An electronic light sensor used in cameras and scanners that converts light into electrical signals. CCDs capture images by accumulating electric charge in proportion to the intensity of light hitting each pixel. In accessibility applications, CCD sensors are used in optical…
- Control Surface(also: Hardware Controller, Mixing Console Controller)
- A control surface is a hardware device with physical knobs, sliders, and buttons that maps to the controls of a software application, most commonly a digital audio workstation (DAW). For people with visual impairments, control surfaces provide essential tactile access to…
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