Motorola MC9500-K User Manual page 244

Glossary - 6 MC9500-K Mobile Computer User Guide
K
Key. A key is the specific code used by the algorithm to encrypt or decrypt the data. Also see, Encryption and Decrypting.
L
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 semiconductor type of laser connected to a power source to generate a laser beam. This laser type is a
compact source of coherent light.
laser scanner. A type of bar code reader that uses a beam of laser 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.
Light Emitting Diode. See LED.
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.
M
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 Series 9000 wireless portable computer. It can be set
up to run as a stand-alone device, or it can be set up to communicate with a network, using wireless radio technology.