ZyXEL Communications Omni 56K USB Lite User Manual page 91

accurately describes a LAN as well. LANs have different topologies, the most
common being the linear bus and the star configuration.
LAPM Link Access Procedure for Modems - a protocol that controls the handshake
between two modems.
LATA (Local Access and Transport Area): A geographic territory used primarily by
local telephone companies to determine charges for intrastate calls. As a result
of the Bell divestiture, switched calls that both begin and end at points within
the LATA (intraLATA) are generally the sole responsibility of the local telephone
company, while calls that cross outside the LATA (interLATA) are passed on to
an Inter eXchange Carrier (IXC).
Layer Protocol A standard of the ISO (International Standards Organization) which defines
everything regarding data communications from the hardware to the screen
display in seven levels.
(Local Exchange Carrier): The local phone companies - either a Regional Bell
LEC
Operating Company (RBOC) or an independent phone company (e.g., GTE) -
that provide local transmission services.
LED Light Emitting Diode - a display element.
LINE The jack on the rear panel which is connected to the wall phone outlet.
Linux A version of the UNIX operating system designed to run on IBM compatible
computers.
Logic Bomb A virus that only activates itself when certain conditions are met. Logic bombs
usually damage files or cause other serious problems when they are activated.
Mailer A program that works with a remote BBS and requests and distributes
messages automatically.
Master/Slave Refers to the architecture in which one device (the master) controls one or
more other devices (the slaves).
Memory A fast storage component of a computer where data can be saved and from
where it can be retrieved.
MNP Protocols for error correction and data compression from Microcom, Inc.
Modem An artificial word concatenated from modulator and demodulator. A modem
translates the digital signals received from its local DTE to analog signals that
are transmitted via a telephone line. At the other end, the analog signals are
Glossary
Omni 56K USB Lite
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