UMAX Technologies Astra 1600U Operation Manual page 20

hardware allowing the scanning of transparent originals, such as slides or X
rays.
TWAIN Compliant: Any software or image input device that conforms to
the TWAIN standard.
TWAIN: A standardized interfacing system that allows many different
software applications to access many different image input devices. TWAIN
is currently more popular on the Windows platform than it is on the
Macintosh.
USB: Universal Serial Bus, a interface between host and peripherals.
20