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Chapter 8 Grossary
O
OCR
Optical Character Recognition. A technology that lets you turn a paper document into an editable electronic
document.
P
Paper Feed
Movement of a sheet of paper into the printer's paper path.
PC Fax
An electronic way to send and receive faxes from your computer. A PC fax is sent from or received by a
computer.
Portrait Orientation
The vertical orientation of your document or image across the width of the page (letter style). This is the
opposite of landscape orientation.
Printer Driver
Software that sends printing instructions to a printer. The printer driver keeps track of the attributes of a printer
and the codes a program must send to access those attributes.
T
TWAIN
Both a protocol and an application programmer's interface (API) that lets you input image data directly from any
source (for example: desktop and handheld scanners, video capture boards, digital cameras, and other
imaging equipment) without requiring you to switch out of the application. It provides compatibility between
image input devices and applications by acting as the liaison between hardware devices and software
applications. Twain, the industry standard, was developed by the TWAIN working group which consists of
representatives from many leaders in the scanner hardware and software industry.
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