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QUBE
G LOSSARY
CODEC
An integrated circuit that performs
communications data conversion
Composite video
Video display signal containing both video and
sync information.
Compact Flash card adapter
A memory card that uses flash memory to store
data
CPU
Central Processing Unit
CR/LF
Carriage Return / Line Feed
CTS
Clear To Send signal used in communication
protocols.
DB9
“D” shaped, 9-pin connector of either male or
female gender.
DB15
“D” shaped, 15-pin connector of either male or
female gender.
DB15HD
High-density, “D” shaped, 15-pin connector with
DB9 shell and footprint.
DB26
“D” shaped, 26-pin connector of either male or
female gender.
DECNET
A proprietary network protocol.
Degauss
Process of removing a magnetic charge from a
material. Color CRT screens are most susceptible
to this type of charge creating “purity” problems.
DER
Distinguished Encoding Rules. This is a binary
message format based on the ASN.1 International
Standard.
DHCP
Dynamic Host Configuration Protocol, a
networking protocol.
DIN
A standard for cable connectors.
DNS
Domain Name System. Translates domain names
into IP addresses.
Dot pitch
Method of comparison used to determine the
quality of a display. It indicates the angle and
proximity each dot has to the other.
DRAM
Dynamic Random Access Memory used for
computer memory systems.
DSUB
A type of cable connector.
DTR
Data Terminal Ready signal used in
communications protocol.
EAP
Extensible Authentication Protocol. This is a
message format standard (Point-to-Point Protocol
(PPP)) used for authentication of user identities.
EAP-LEAP
Lightweight EAP. A Cisco-developed EAP
authentication method with features such as
dynamic WEP keys and mutual authentication
between a wireless client and a Radius server.
EAP-PEAP
Protected EAP. An 802.1X authentication type
where server-side authentication happens using
digital certificates and client-side authentication
happens via another 802.1X authentication type,
such as EAP MSCHAPV2.
EEPROM
Electrically Erasable Programmable Read Only
Memory. The portion of the monitor’s memory
which holds sysgen information and hardware
configurations.
EMI
Electromagnetic Interference generated by
repetitive signals such as microprocessor clocks
that can interfere with other devices or two-way
radio communications.
EPP
Enhanced Parallel Port
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