Micros Systems Workstation 4 Setup Manual page 94

WS4 Glossary
Device Driver
A program that is linked with and extends the operating system to
provide an interface to a hardware not originally supported by the
operating system. Device drivers are typically included with add-on
hardware devices such as modems or PCMCIA cards.
DOC
Abbreviation for Disk On Chip. The WS4 uses the Disk On Chip 2000,
a single chip solid state flash drive packaged in a 32-Pin-Dual-In-Line
Package (DIP). Combining a disk controller with flash memory, the
device is available in capacities ranging from 16M to 1G. Future
versions will offer increased capacity. The WS4 will ship with a 32M
part initially.
Using TrueFFS technology, the Disk On Chip appears as a windows file
system and includes the ability to boot the Windows CE operating
system. The Disk On Chip contains the Windows CE OS image along
with all device drivers and utility programs such as diagnostics and the
MICROS CAL.
IDN
Abbreviation for Integrated Device Network. Also referred to in
previous MICROS documentation as the Stand-alone Device Network
or Remote Printer Networks. The MICROS IDN is based on a
full-duplex RS422 interface designed to support MICROS Stand-alone
Printers and Video Display Units connected in a multi-drop or daisy
chain configuration. IDN devices primarily consist of thermal and dot
matrix based roll printers.
The Workstation 4 has two RS422 ports, labelled RS422-A and
RS422-B, each of which is capable of driving IDN devices. However the
application software determines which port will be used for IDN
printing.
LED
Abbreviation for Light Emitting Diode. A LED is a semiconductor that
converts electrical energy to light. LEDs are available in many colors
including IR, and are typically used as power or status indicators.
The Workstation 4 Operator LED is a two color device, modified to
display Green, Amber, and Red colors. Each of the three colors can be
combined with 4 unique blink rates to provide twelve discreet
indications.
Glossary-4 Workstation 4 Setup Guide