Input Devices (Grade 11 NSC Matric Computer Application Technology): Flashcards
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Input devices role
Input devices role
Bridge between humans & computers for communication & control
Most popular modern input method
Most popular modern input method
Touchscreens
Scanner function
Scanner function
Transform physical documents/photos into digital format
Digital cameras capture images how
Digital cameras capture images how
Directly in electronic format, no film processing needed
Biometric devices identify users using
Biometric devices identify users using
Unique physical characteristics (fingerprints, iris, face)
Wireless input device communication tech
Wireless input device communication tech
Bluetooth or radio frequency signals
Colour depth (bit depth) meaning
Colour depth (bit depth) meaning
Number of bits used to represent colour info per pixel
Resolution units for digital images
Resolution units for digital images
Pixels per inch (ppi) or dots per inch (dpi)
Dynamic range definition
Dynamic range definition
Span of light intensities scanner can detect & reproduce
Camera resolution measured in
Camera resolution measured in
Megapixels