MC1000 User GuideGL-6
IPX/SPX Internet Package Exchange/Sequential Packet Exchange. A
communications protocol for Novell. IPX is Novell’s Layer 3
protocol, similar to XNS and IP, and used in NetWare networks. SPX
is Novell's version of the Xerox SPP protocol.
IS-95 Interim Standard 95. The EIA/TIA standard that governs the
operation of CDMA cellular service. Versions include IS-95A and IS-
95B. See CDMA.
Key A key is the specific code used by the algorithm to encrypt or
decrypt the data. Also see, Encryption and Decrypting.
laser scanner A type of bar code reader that uses a beam of laser light.
LASER Light Amplification by Stimulated Emission of Radiation.The laser
is an intense light source. Light from a laser is all the same
frequency, unlike the output of an incandescent bulb. Laser light is
typically coherent and has a high energy density.
Laser Diode A gallium-arsenide semiconductor type of laser connected to a
power source to generate a laser beam. This laser type is a compact
source of coherent light.
LCD See Liquid Crystal Display.
LED Indicator A semiconductor diode (LED - Light Emitting Diode) used as an
indicator, often in digital displays. The semiconductor uses applied
voltage to produce light of a certain frequency determined by the
semiconductor's particular chemical composition.
Liquid Crystal Display (LCD) A display that uses liquid crystal sealed between two glass plates.
The crystals are excited by precise electrical charges, causing them
to reflect light outside according to their bias. They use little
electricity and react relatively quickly. They require external light to
reflect their information to the user.
Light Emitting Diode See LED.
MC Mobile Computer.
MDN Mobile Directory Number. The directory listing telephone number
that is dialed (generally using POTS) to reach a mobile unit. The
MDN is usually associated with a MIN in a cellular telephone -- in
the US and Canada, the MDN and MIN are the same value for voice
cellular users. International roaming considerations often result in
the MDN being different from the MIN.
MIL 1 mil = 1 thousandth of an inch.
MIN Mobile Identification Number. The unique account number
associated with a cellular device. It is broadcast by the cellular
device when accessing the cellular system.
Misread (Misdecode) A condition which occurs when the data output of a reader or
interface controller does not agree with the data encoded within a
bar code symbol.
Mobile Computer In this text, mobile computer refers to the Symbol MC1000 portable
computer. It can be set up to run as a stand-alone device.
Nominal The exact (or ideal) intended value for a specified parameter.
Tolerances are specified as positive and negative deviations from
this value.
Nominal Size Standard size for a bar code symbol. Most UPC/EAN codes are used
over a range of magnifications (e.g., from 0.80 to 2.00 of nominal).
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