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Auditory Displays
Auditory vs. Visual
Other Display Types
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Other Display Types

In addition to visual and auditory displays, there are displays that utilize other human senses, principally touch and smell. Although these senses are less frequently used for display purposes, there are times when the presentation of information in these sense modalities is essential due to conditions that hamper or preclude vision or hearing.

These adverse conditions can range from sensory overload to environments that are too dark, too bright, or too obstructed for vision or too noisy for hearing. This section introduces the next most widely used non-visual/non-auditory display types, that is, tactual (somatosensory) and smell (olfactory).

Anti-lock braking system Anti-lock braking systems (ABS) provide tactual/ haptic feedback to the driver when they are engaged. The brake pedal pulsates, indicating the anti-lock brakes are activated.
Computer Control Room
Some computer control rooms and maintenance areas are equipped with carbon dioxide, CO2, fire suppression systems. CO2 is a colorless, odorless gas that is hazardous to humans in closed environments. Therefore, some systems add the scent of wintergreen to the CO2 to signal gas release.


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