Datalogic MEMOR 20 User Manual page 101

Pairing
A Bluetooth@ pairing occurs when two Bluetooth@ devices agree to communicate with
each other and establish a connection.
Parameter
A variable that can have different values assigned to it.
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.
ROM
Read-Only Memory. Data stored in ROM cannot be changed or removed.
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.
Subnet
A subset of nodes on a network that are serviced by the
same router.
Symbol
A scannable unit that encodes data within the conventions of a certain symbology, usu-
ally including start/stop characters, quiet zones, data characters and check characters.
Symbology
The structural rules and conventions for representing data within a particular bar code
type (e.g. UPC/EAN, Code 39, PDF417, etc.).
USB
Universal Serial Bus. Type of serial bus that allows peripheral devices (disks, modems,
printers, digitizers, data gloves, etc.) to be easily connected to a computer. A "plug-and-
play" interface, it allows a device to be added without an adapter card and without
rebooting the computer (the latter is known as hot-plugging). The USB standard, devel-
oped by several major computer and telecommunications companies, supports data-
transfer speeds up to 12 megabits per second, multiple data streams, and up to 127
peripherals.
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USER'S MANUAL