Short answers, pulled from the story.
A single independent channel of input or output defines a modality in human computer interaction. Such channels differ based on sensory nature like vision versus audition and vary by processing type such as text compared to image.
Vision reaches 250 to 300 words per minute according to research. Hearing achieves 150 to 160 words per minute in similar studies while Tactition via refreshable Braille displays averages 125 words per minute.
Uncommon modalities include gustation for taste and olfaction for smell. Thermoception handles heat while nociception manages pain signals and Equilibrioception tracks balance within the user experience.
Six types of cooperation define how modalities convey information together including equivalence, specialization, redundancy, complementarity, transfer, and concurrency. Complementary-redundant systems form datasets using multiple sensors effectively.
Smartphones have increased public comfort with complex modalities significantly through motion tracking and orientation sensing. Motion tracking appears commonly in smartphone mapping software globally while speech recognition integrates deeply with Virtual Assistant applications now.