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G
G-6 - communications directorate of an Army staff
G/LSRD - Ground/Loop Start Ringdown Trunk
G/T - antenna gain-to-noise temperature
G1 - Assistant Chief of Staff, G1 (Personnel)
G2 - Assistant Chief of Staff, G2 (Intelligence)
G3 - Assistant Chief of Staff, G3 (Operations and Plans)
G6 - Assistant Chief of Staff, G6 (Communications-ElectronicsPrincipal Staff Officer)
GAA - gateway access authorization
GaAs - gallium arsenide
GACC - Ground Attack Control Center
GACIAC - Guidance and Control Information Analysis Center
GAL - generic array logic
GAL - Global Access List
gal - gallon(s)
GAM - GPS-aided munition
GAMS - Guide to Available Mathematical Software (NIST)
GAO - General Accounting Office
GAPI - gateway application programming interface
Gapped Clock - A clock stream at a nominal bit rate that may be missing clock pulses at arbitrary intervals for arbitrary lengths of time. A gapped clock is different from a synchronous clock.
GAR - gateway access request
GAT - government acceptance test
GAT - guidance, apportionment and target (cell)
Gate - A digital circuit with one output and one or more inputs. The output value is determined by specific criteria (for example, truth table).
GATEC - government acquisition through electronic commerce
Gateway Link - A logical connection between two gateway nodes consisting of one or more trunk modules.
Gateway Link ID - Gateway links are identified through the Operator Interface by indicating the gateway nodes connected by a link. For example, the link between Gateway Node 5 in Domain 30 and Gateway Node 7 in Domain 100 is referred to as D30N5D100N7 (the local gateway node must be listed first).
Gateway Node - A node that connects to a neighbor gateway node through a gateway link to provide connectivity between domains.
GATM - global air traffic management environment
Gb - gigabit
GB - gigabyte
GB - group buffer
GBCS - ground based common sensor
GBL - ground based laser
GBN - global block numbering
GBNP - Global Block Numbering Plan
Gbps - gigabits per second
GBps - gigabytes per second
GBR - ground based radar
GBS - ground based sensor
GBS - Global Broadcast Service
GBS - global broadcast system
GCA - ground control approach
GCC - global control center
GCCS - Global Command and Control System
GCCS-A - Global Command and Control System-Army
GCCS-M - Global Command and Control System-Maritime
GCE - ground combat element
GCHQ - Government Communication Headquarters (UK)
GCI - ground controlled intercept
GCOS - general comprehensive operating system
GCR - group coded recording
GCRA - (Generic Cell Rate Algorithm) - Used to define conformance with respect to the traffic contract of the connection. For each cell arrival, the GCRA determines whether the cell conforms to the traffic contract. The UPC function may implement the GCRA, or one or more equivalent algorithms to enforce conformance. The GCRA is defined with two parameters: the Increment (I) and the Limit (L).
GCRI - general collective routing indicator
GCS - Ground Control Station
GCSS-A - Global Command and Control System-Army
GCSS - global combat support system
GCSS-AF - Global Combat Support System Air Force component (Was BLSM-II)
GCU - guidance and control unit
GD - General Datacomm
GD - graphic display
GDA - gimballed dish antenna
GDA - global data area
GDB - global database
GDB - MGR - global database manager
GDDM - graphical data display manager
GDF - group distribution frame
GDI - graphics device interface
GDI - Global Domain Identifier
GDI - Global Domain Identifier
GDIP - General Defense Intelligence Program
GDMO - guidelines for the definition of managed objects
GDMS - global database management system
GDS - global directory service
GDSS - global decision support system
GDU - graphic display unit
GE - Germany
GEDAE - graphical entry distributed application environment
GEM - Grey Extension Module
GEM - General Dynamics Encryption Manager
GEMINI - Global Emergency Management Information Network Initiative (G-7)
GEMS - GPS engineering management system
GEMSS - GITS Electronic Mail Steering Subcommittee
GEN - generation
gen - generator(s)
GENE - GPS enhanced navigation system
GENSER - general service
GEO - geostationary orbit
GEOREF - geographical reference
GES - government electronic systems
GET - get execute trigger
GETS - Government Emergency Telecommunications Service (NCS)
GFCI - ground fault circuit interrupt
GFE - government furnished equipment
GFI - government furnished information
GFLOPS - billion floating-point operations per second
GFSK - Gaussian frequency shift keying
GGI - global geospatial information
GGI - global grid initiative
GGI&S - global geospatial Information and Services
GHz - gigaHertz
GIDEP - government-industry data exchange program
GIE - global information environment (Army)
GIF - graphics interchange format
GIG - Global Information Grid
GIGO - garbage-in/garbage-out
GII - global (Government) information infrastructure
GILS - government information locator system (Service)
GIPS - billion instructions per second
GIPSY - graphic information presentation system
GIS - geographic information systems
GIS - Global Information Society
GISA - German Information Security Agency
GITEC - Government Information Technology Executive Council
GITS - Government Information Technology Services
GIV - geological information visualization
GIX - Global Information Exchange
GK - gate keeper
GKS - graphical kernel system
Glare - On a POTS line an incoming call is signaled by periodically applying an AC ring voltage to the line. Since there is a semi random period before the ring, and pauses between rings, it is possible to seize a line which is "about to ring" (and answer a call) when attempting to place an outgoing call. When this scenario happens it is called glare. Glare is much less likely if Ground Start trunks are used. See Ground Start Trunk.
Glass - TTY - A dumb terminal used to accept keyed data and transmit that data to a computer. This terminal has no other processing capabilities. The term glass refers to the TTY with a CRT screen.
GLIS - global land information system
GLLD - ground laser locator/designator
GLOBIXS - global information exchange systems (Navy)
GLPAL - global preaffiliation list
GLU - Group Logic Unit
GM - group modem
GMAP - general macro assembler program
GMD - global missile defense
GMDSS - global maritime distress and safety system
GMF - ground mobile forces
GMF - ground mobile forces
GMFSC - ground mobile forces satellite communications
GMITS - Guidelines for the Management of IT Security
GMPCS - global mobile personal communications systems
GMR - giant magnetoresistive
GMT - Greenwich Mean Time
GND - ground
GNDCP - ground command post
GNDFE - ground force element
GNIE - Global Networked Information Enterprise
GNMP - government network management profile
GNOSC - Global Network Operations and Security Center
GNSS - global navigational satellite system
GOCA - graphics object content architecture
GOES - Geostationary Operational Environmental Satellites
GOLDS - general online display system
GOS - grade of service
GOSC - Global Operations and Security Center (DISA)
GOSIP - government open system interconnection profile (protocol)
GOTS - government off-the-shelf
GP - group
GPALS - global positioning and location system
GPALS - global protection against limited strikes
GPC - general purpose computer
GPCSC - general purpose computer support center
GPEE - general purpose encryption equipment
GPI - graphics programming interface
GPIB - general purpose interface bus
GPMDM - Group Modem
GPRS - general packet radio service
GPS - Global Positioning System
GPSR - Global Positioning System receiver
GPSS - general purpose simulation system
GRACE - generic reusable Ada components for engineering
Grade Of Service - This is simply the ratio of calls blocked to total calls in a decimal form. So a grade of service of P.08 would represent 8% blocking. Telephone tariffs regulate the acceptable average grade of service which must be provided on public networks.
GRASP - graphical system for presentation
GRCS - guardrail common sensor
GRE - graphics engine
GRNN - general regression neural network
Ground Start - A method of signaling between two machines, where one machine grounds one side of the line and the other machine detects the presence of the ground.
Ground Start Trunk - A type of telephone trunk where the request to make an outgoing call (i.e. request for dial tone) is made by briefly grounding the Tip conductor. Many PBX systems use ground start trunks as they are less prone to glare than Loop start trunks. See Loop Start Trunk. See also Glare
GRT - ground receive terminal
GRWSIM - ground warfare simulation
GS - general support
GSA - General Services Administration
GSA - global security architecture
GSB - gateway signaling buffer
GSE - ground support equipment
GSII - Government Services Information Infrastructure
GSM - global system mobile (Europe)
GSM - ground station module
GSM - groupe speciale mobile
GSORTS - global status of resources and training system
GSPM - Global Standard Profile Matrix
GSR - ground surveillance radar
GSRD - Ground Start Ringdown
GSS - general security support (DOD)
GSSAP - generic security service applications programming
GSSP - Generally Accepted System Security Principles
GSTS - Ground-based surveillance and tracking system
GSVS - global secure voice system
GT - Guard Time
GTA - graphic training aid
GTACS - ground theater air control system
GTE - General Telephone and Electric
GTEAM - Global Team Labeling
GTFM - generalized tamed frequency modulation
GTIS - Government Telecommunications and Information Services (Canada)
GTL - gunning transceiver logic
GTLD - Generic Top Level Domains
GTN - Global Transportation Network (DOD)
GTS - government telecommunications system
GUI - graphical user interface
GVM - global virtual manufacturing
GW - gateway
GWC - global weather central
GWIP - global weather intercept program
GWS - groupware server
GWS - GroupWare Server
GXX - format for a user's telephone number, 4/3 numbering plan
GXXX - format for a user's telephone number, 3/4 numbering plan
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