Motorola MS4407 用户手册
Glossary - 11
Vertical Bar Code. A bar code pattern presented in such orientation that the symbol from start to stop is perpendicular to
the horizon. The individual bars are in an array appearing as rungs of a ladder.
Visible Laser Diode (VLD). A solid state device which produces visible laser light.
W
Wand Scanner. A handheld scanning device used as a contact bar code or OCR reader.
Wedge. A device that plugs in between a keyboard and a terminal and allows data to be entered by a keyboard or by various
types of scanners.
X
X Dimension. The dimension of the narrowest bar and narrowest space in a bar code.
Y
Y Dimension. The height of the modules in a row of a 2-dimensional (2-D) symbols.