Datalogic Joya, User Manual

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Glossary
142 JOYA™ TOUCH
RAM
Random Access memory. Data in RAM can be accessed in random
order, and quickly written and read.
Resolution
The narrowest element dimension which is distinguished by a
particular reading device or printed with a particular device or
method.
RF
Radio Frequency.
Scanner
An electronic device used to scan bar code symbols and produce a
digitized pattern that corresponds to the bars and spaces of the
symbol. Its three main components are:
• Light source (laser or photoelectric cell) - illuminates a bar
code.
• Photodetector - registers the difference in reflected light (more
light reflected from spaces).
• Signal conditioning circuit - transforms optical detector output
into a digitized bar pattern.
SDK
Software Development Kit.
Symbol
A scannable unit that encodes data within the conventions of a
certain symbology, usually including start/stop characters, quiet
zones, data characters and check characters.