Glossary
Apple-Compatible Driver:
A Macintosh system extension that addresses the UMAX scanner in
Apple Scanner emulation mode. This is used for programs that do not
support the Photoshop Plug-in protocol or do not drive the scanner
directly.
Application Software:
Software that is used to perform a specific function, e.g., image
processing, OCR (Optical Character Recognition), or DTP (Desktop
Publishing).
ASPI:
Advanced SCSI Programming Interface; SCSI communication standard
developed by Adaptec.
Black and White:
A 1-bit image file capable of only displaying black and white image
data with no intermediate gray levels.
DIP Switches:
Small switches mounted in or on computer equipment that set certain
perimeters.
Document Cover:
The plastic cover that is lowered over a document on the scanner’s
object glass.
Expansion Slot Cover:
A metal or plastic dust cover that covers the exterior “hole” in an
expansion slot.
Expansion Slot:
A connector and bracket system in a computer into which an expansion
or interface card can be inserted to add functions to a computer system.
Folder:
An electronic storage area used to store and organize files and other
folders and is often represented on a computer screen by a folder-like
icon.
Grayscale:
An 8-bit image file capable of representing all tones and colors in the
image using 256 shades of gray.
I/O Base Address:
An address that is used for communication between a host computer
and an expansion or interface card. All cards in a computer system
must be set to different I/O addresses.
Icon:
The graphical representation of a computer file or piece of computer
software.
Indicator Panel:
The area of the scanner that contains the LED indicators to show
scanner status.
Interface Card:
A card that is inserted into an expansion slot to allow the connection of
a peripheral device to a PC.
Non-TWAIN Driver:
An interfacing system that does not follow the TWAIN standard and is
designed for a specific software package and a specific image input
device.
Object Glass:
The tempered glass of the scanner where documents or objects to be
scanned are placed.
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