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Giffgaff
Giffgaff, legally Giffgaff Limited, is a British mobile network operator launched in 2009 and owned by Telefonica UK, running on O2's network with a community-run member model.
Gift card
A gift card, also called a gift certificate or gift voucher, is a prepaid stored-value card redeemable for goods or services, typically at a single merchant or payment network.
Gifu Hand
The Gifu Hand is a series of five-fingered anthropomorphic robot hands developed at Gifu University in Japan as a standard research platform for grasping and dexterous manipulation.
GigaAI (极佳视界) (Jijia Shijie)
GigaAI (极佳视界) is a Beijing startup in embodied AI and world models, founded in June 2023 by two Chinese Academy of Sciences researchers and known for the GigaBrain and GigaWorld platforms.
Gigabit Ethernet
Gigabit Ethernet (GigE) is a family of Ethernet standards that carry frames at 1000 Mb/s over fiber and copper, defined by IEEE 802.3z (1998) and 802.3ab (1999).
Gigabyte Technology (技嘉科技)
Gigabyte Technology (技嘉科技) is a Taiwanese computer hardware company founded in 1986, known for motherboards and graphics cards and for its AORUS gaming brand and Giga Computing AI server business.
GigaChat
GigaChat (ГигаЧат) is a family of large language models developed by the Russian company Sber, first announced in April 2023 and focused on the Russian language.
Gigaclear
Gigaclear Limited is a British alternative network operator building full-fiber broadband in rural England since 2010, owned since April 2026 by a consortium of its lenders.
Gigafactory
A gigafactory is a very large plant producing lithium-ion battery cells, battery materials, or electric vehicles at gigawatt-hour scale, a term popularized by Tesla and now used industry-wide.
Gigafactory Berlin-Brandenburg
Gigafactory Berlin-Brandenburg is Tesla's automobile and battery factory in Grünheide, Brandenburg, southeast of Berlin. Opened in March 2022, it was Tesla's first European plant and builds the Model Y.
Gigafactory Nevada
Gigafactory Nevada, also known as Gigafactory 1, is Tesla's battery, powertrain, and energy-storage plant near Reno, Nevada, announced in 2014, mass-producing lithium-ion cells with Panasonic since 2017.
Gigafactory Texas
Gigafactory Texas, also called Giga Texas, is Tesla's vehicle and battery cell plant in Austin, Texas, opened in 2022, where it builds the Model Y and Cybertruck.
Gigaom
Gigaom is a technology research company founded by journalist Om Malik as a pioneering tech blog, which shut down in 2015 and now produces analyst research.
GigaSpeech
GigaSpeech is an English speech recognition corpus released by SpeechColab in 2021, with 10,000 hours of human-transcribed audiobook, podcast, and YouTube audio for supervised training.
GigE Vision
GigE Vision is a global standard for machine vision, defining how industrial cameras stream images and control data over Gigabit Ethernet networks with 100-meter cable reach.
Giheung
Giheung (기흥) is Samsung Electronics' semiconductor campus in Yongin, South Korea, where the company began making memory chips in 1983 and is building the NRD-K research complex.
Gil Amelio
Gil Amelio is an American technology executive and physicist who was chairman and CEO of Apple Computer from 1996 to 1997, buying Steve Jobs's NeXT before resigning amid record losses.
Gila River power station
The Gila River power station is a natural gas-fired combined-cycle power plant near Gila Bend, Arizona, about 2,200 MW across four blocks, now owned by Salt River Project, Tucson Electric Power, and UNS Electric.
Gilan power station
Gilan power station (نیروگاه سیکل ترکیبی گیلان) is a 1,305 MW gas-fired combined cycle plant about 15 km southeast of Rasht, Iran, built by Siemens and fully operational since 1997.
Gilbert cell
The Gilbert cell is a four-quadrant analog multiplier circuit built from a transconductance stage and cross-coupled switching transistors, first used as a mixer by Barrie Gilbert around 1968.
Gilbert Froment
Gilbert Froment, born 1930, is a Belgian chemical reaction engineer known for modeling catalytic reactors in petroleum refining and petrochemicals, and a Texas A&M research professor.
Gilbert Roberts
Sir Gilbert Roberts (1899–1978) was a British civil engineer who led the superstructure design of the Forth Road, Severn, and Humber suspension bridges, patenting the Severn's aerofoil box deck.
Gildan
Gildan is a Canadian apparel manufacturer headquartered in Montreal, Quebec, known for vertically integrated low-cost production of activewear, underwear, and socks, sold mainly through wholesale and screenprint channels.
Gilgel Gibe III Dam
Gilgel Gibe III Dam, also known as Gibe III, is a 250 m roller-compacted concrete dam and 1,870 MW hydroelectric plant on Ethiopia's Omo River.
Gilles Brassard
Gilles Brassard (born 1955) is a Canadian computer scientist at the Université de Montréal who co-invented quantum cryptography through the BB84 protocol and co-introduced quantum teleportation, winning the 2025 Turing Award.
Gillette
Gillette is an American shaving and grooming brand founded by King C. Gillette in 1901 that pioneered the disposable-blade safety razor and is now owned by Procter & Gamble.
Gillig
Gillig, legally GILLIG LLC, is an American manufacturer of heavy-duty transit buses based in Livermore, California, founded in 1890 as a San Francisco carriage shop.
Gimbal
A gimbal, also called a Cardan suspension, is a device of pivoted rings that keeps an object level while its support moves, used in compasses, cameras, and rocket engines.
Gimbal motor
A gimbal motor is a low-KV, high-pole-count direct-drive brushless motor that produces smooth torque at very low speed, used in camera stabilizers, drone gimbals, and precision pointing platforms.
Gimli Glider
The Gimli Glider, registration C-GAUN, is the Air Canada 767 that ran out of fuel at 41,000 feet in 1983 and glided to a safe landing at Gimli, Manitoba.