Terms Definitions
USB
Universal serial bus, a digital interface for connecting up to 64 devices in a
tiered-star topology. See http://www.usb.org.
White Balance
The adjustment of electronic still picture color channel gains or image
processing so that radiation with relative spectral power distribution equal to
that of the scene illumination source is rendered as a visual neutral.
Source: ISO/WE 12231 Photography-- Electronic still-picture cameras -- Terminology