Glossary - Motorola MW 800 Series Vehicle Installation Manual

Glossary

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Glossary
C
Central Processing Unit (CPU): The computer in charge of fetching, processing, and
storing data, generally used to refer to the entire microprocessor chip.
D
Data Terminal Equipment (DTE): User terminal equipment which creates information
for transmission, for example, a user's PC.
DB-25: A 25-pin connector used for V.24 or RS-232C interfaces.
DB-9: A standard 9-pin connector used for serial interfaces.
Direct Current (DC): Current that flows through a circuit in only one direction.
G
Global Positioning System (GPS): A constellation of 24 radio navigation (not
communication) satellites in six different orbits, which transmit signals used by GPS
receivers to determine precise location (position, velocity, and time) solutions.
M
Mobile Data Terminal (MDT): Vehicle installed device providing a data entry and display
user interface for data communication functions.
P
Personal Computer (PC): The generic term for a single user, microprocessor based
computer whose architecture is derived from the original IBM® Personal Computer.
R
Radio Frequency (RF): Refers to the electromagnetic energy wavelengths between the
audio and the light range (usually somewhere between 10 kHz and 300 GHz).