Specifications

Glossary Page 75
OCR Optical Character Recognition. The technology that allows computers to
“read” text from physical objects. OCR requires a graphical representation
of text to interpret, which usually comes from a scanned image.
page sequence The type of color scanning in which the entire image is scanned once for
each separate color.
pixel Short for picture element. Each image is composed of a number of pixels.
Pixels are also counted in units of dots.
port An interface channel through which data is transmitted between devices.
resolution Indication of how finely an image is resolved into pixels. Measured in dots
per inch (dpi), pixels per inch (ppi), or samples per inch (spi).
scan An operation performed by the sensor and the carriage of a scanner. The
image is divided into pixels by scanning.
scanning area The physical size of the image that can be scanned by the scanner.
SCSI Small Computer System Interface. A method used to connect your
computer to peripherals such as scanners, hard disk drives, and
CD-ROM drives.
SCSI chain A SCSI bus arrangement that allows several devices to be connected
simultaneously in a line to a single computer. Sometimes called a daisy
chain.
SCSI ID The numbers that all devices in a SCSI connection use to identify each
other. If the same ID number is used by two devices in the same SCSI
chain, the devices cannot operate properly.
ref.book Page 75 Monday, September 28, 1998 4:24 PM