Datalogic Joya, User Manual

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Glossary
User’s Manual 143
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, developed 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.
WLAN
A Wireless Local Area Network links devices via a wireless
distribution method (typically spread-spectrum or OFDM radio), and
usually provides a connection through an access point to the wider
internet. This gives users the mobility to move around within a local
coverage area and still be connected to the network.
WPAN
A Wireless Personal Area Network is a personal area network - a
network for interconnecting devices centered around an individual
person's workspace - in which the connections are wireless.
Typically, a wireless personal area network uses some technology
that permits communication within about 10 meters - in other
words, a very short range.