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port
An interface channel through which data is transmitted between
devices.
resolution
Indication of how finely an image is resolved into pixels. Often
measured in dots per inch (dpi) or pixels per inch (ppi).
thumbnails
Small representations of images.
TWAIN
A type of interface protocol that makes input peripherals,
such as scanners or digital cameras, easier to access directly
from application programs.
USB
A Universal Serial Bus. A hardware interface for connecting low-
speed peripherals such as a keyboard, mouse, scanner, or printer
to the computer.
USB hub
A device that normally provides four TYPE A sockets to increase
the number of USB ports on a computer.
2
Glossary
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