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GDDR7
GDDR7 is a JEDEC-standardized graphics memory published in March 2024, succeeding GDDR6 with PAM3 signaling at 24 to 32 Gbps per pin and on-die ECC, used in NVIDIA's RTX 50-series GPUs.
GDScript
GDScript is a high-level, object-oriented, gradually typed programming language built for the Godot game engine. It uses Python-like, indentation-based syntax and offers optional static typing, introduced with Godot 3.1.
GDSII
GDSII, also written GDS2 or GDS, is a binary file format storing integrated circuit and photomask layouts, created by Calma in 1978 and still the standard handoff format at tape-out.
GE AC4400CW
The GE AC4400CW, often written AC44CW, is a 4,400-horsepower six-axle diesel-electric freight locomotive built by GE from 1993 to 2004, GE's first with AC traction and sold to over 2,800 units.
GE AC44C6M
The GE AC44C6M is a rebuilt diesel-electric freight locomotive made by converting older GE Dash 9 units from DC to AC traction, principally for Norfolk Southern since 2015.
GE AC6000CW
The GE AC6000CW, also known as the GE C60AC, is a 6,000-horsepower, six-axle AC-traction diesel-electric locomotive built by GE Transportation from 1995 to 2001, bought in quantity only by Union Pacific and CSX.
GE Aerospace
GE Aerospace is an American aircraft engine manufacturer headquartered in Cincinnati, Ohio, formed in 2024 as the aviation-focused successor to General Electric after its split.
GE Appliances
GE Appliances is an American home appliance manufacturer in Louisville, Kentucky, founded in 1907 and sold by General Electric to China's Qingdao Haier in 2016 for $5.6 billion.
GE Capital Aviation Services
GE Capital Aviation Services (GECAS) was General Electric's commercial aircraft leasing and financing business, one of the world's largest airline lessors before its 2021 sale to AerCap.
GE ES44AC
The GE ES44AC is a six-axle, 4,400-horsepower AC-traction diesel-electric freight locomotive in GE's Evolution Series, successor to the AC4400CW, built from 2002 to 2019 with about 3,700 units sold.
GE Evolution Series
The GE Evolution Series, also known as the Evolution locomotive or GEVO, is a family of six-axle diesel-electric freight locomotives built by GE Transportation since 2005.
GE Genesis
GE Genesis is a series of passenger diesel-electric locomotives built by GE Transportation between 1992 and 2001 for Amtrak, Metro-North, and VIA Rail, with over 300 units produced.
GE Haliade-X
The GE Haliade-X is an offshore wind turbine platform introduced by GE Renewable Energy in 2018 as the first turbine rated at 12 MW and above.
GE HealthCare
GE HealthCare is an American medical technology company in Chicago that makes imaging, ultrasound, patient-monitoring, and pharmaceutical diagnostics products, spun off from General Electric in 2023.
GE Hitachi Nuclear Energy
GE Hitachi Nuclear Energy is a GE Vernova and Hitachi joint venture, formed in 2007 and based in Wilmington, North Carolina, that designs boiling water reactors.
GE Passport
The GE Passport is a high-bypass turbofan engine by GE Aerospace, the sole engine for the Bombardier Global 7500 and 8000, in service since 2018.
GE Vernova
GE Vernova Inc., also General Electric Vernova, is an American energy equipment and services company spun off from General Electric in April 2024, headquartered in Cambridge, Massachusetts.
Ge2Sb2Te5 phase-change photonics
Ge2Sb2Te5 phase-change photonics is the use of germanium antimony telluride (GST) as a switchable optical material whose amorphous and crystalline phases enable nonvolatile photonic memory, reconfigurable metasurfaces, and programmable photonic circuits.
GEA Farm Technologies
GEA Farm Technologies is the dairy farming division of Germany's GEA Group, headquartered in Bönen, whose DairyRobot milking boxes and DairyNet herd platform trace to Westfalia's 1926 milking system.
GÉANT
GÉANT, first launched in 2000, is the pan-European backbone network and association of 37 national research and education networks, serving over 50 million researchers, students, and educators across Europe.
Geant4
Geant4 is a free C++ toolkit that simulates the passage of particles through matter using Monte Carlo methods, first released in 1998 and used in physics, space science, and medical physics.
Gear
A gear, also called a gear wheel or cog wheel, is a toothed machine element that meshes with another to transmit rotation and torque between shafts.
Gear hobbing
Gear hobbing is a continuous gear-cutting process in which a worm-shaped cutter, the hob, and a gear blank rotate in sync, dominating production of external spur and helical gears.
Gear oil
Gear oil is a lubricant formulated for gear sets like manual transmissions and differentials, distinguished from engine oil by extreme-pressure additives and SAE J306 viscosity grades.
Gear pitting
Gear pitting is a rolling contact fatigue failure of gear tooth flanks in which cyclic contact stresses break small pieces of material out of the surface, leaving pits.
Gear pump
A gear pump is a positive displacement pump that carries fluid between meshing gear teeth and a close-fitting housing, coming in external and internal designs and moving a fixed volume per revolution.
Gear ratio
A gear ratio is the ratio of the input angular speed of a gear train to its output angular speed, trading speed against torque in any gearbox or transmission.
Gear stick
The gear stick, also called a gear lever or stick shift, is the hand-operated lever inside a vehicle that the driver moves to select gears in the transmission.
Gear strength rating
A gear strength rating is a calculated measure of how much load a gear tooth can carry, based on standardized methods such as ISO 6336 and ANSI/AGMA 2101.
Gear test rig
A gear test rig is a laboratory machine that runs gear pairs under controlled load, speed, temperature, and lubrication to measure wear, friction, efficiency, and failure modes.