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Fiber to the x
Fiber to the x (FTTx) is a family of broadband access architectures in which optical fiber replaces part or all of the copper local loop to the subscriber.
Fiber-optic communication
Fiber-optic communication, also known as optical fiber communication, transmits information as light pulses through thin glass strands; submarine fiber cables carry about 99% of the world's international data traffic.
Fiber-optic Ethernet
Fiber-optic Ethernet is the family of Ethernet physical-layer standards that carry frames as light over optical fiber, from 10 Mb/s fiber links up to 400 Gb/s.
Fiber-reinforced concrete
Fiber-reinforced concrete (FRC) is a composite of hydraulic cement, aggregate, and discontinuous fibers, usually steel, glass, synthetic, or natural, that bridges cracks and adds post-cracking strength.
Fiber-reinforced plastic rebar
Fiber-reinforced plastic rebar, also called fiber-reinforced polymer or FRP rebar, is a noncorrosive concrete reinforcing bar made of glass, carbon, or basalt fibers in a polymer resin, used where steel would corrode.
Fiber-reinforced pneumatic actuator
A fiber-reinforced pneumatic actuator is a soft robotic actuator in which inextensible fibers constrain an inflating rubber chamber to produce bending, extension, or twisting; invented by Suzumori in the 1990s.
Fibonacci heap
A Fibonacci heap, also called an F-heap or fib heap, is a data structure for priority queues, invented by Michael Fredman and Robert Tarjan in 1984 and published in 1987.
Fibre Channel
Fibre Channel (FC) is a high-speed network technology designed primarily for storage area networks, in which servers and storage systems exchange block data over a dedicated switched fabric.
Fibre-reinforced plastic
Fibre-reinforced plastic (FRP), also called fiber-reinforced polymer, is a composite material in which strong fibers such as glass or carbon are embedded in a polymer matrix for lightweight strength.
Fibrin sealant
Fibrin sealant is a two-component surgical agent of fibrinogen and thrombin that mimics the final stage of blood clotting, acting as a hemostat, sealant, and tissue adhesive.
FictionBook
FictionBook (FB2) is an open, XML-based e-book format that stores a book as a single XML document, originating in the Russian online library community around 2002.
Fiddler's Ferry power station
Fiddler's Ferry power station was a coal-fired power station on the River Mersey between Widnes and Warrington, Cheshire, generating electricity from 1971 until its closure on 31 March 2020.
Fiddler's Green
Fiddler's Green is a sailors' paradise in 19th-century English maritime folklore, recorded by 1825, where sailors who die ashore enjoy endless rum, tobacco, music, and company after death.
Fidelipac
Fidelipac is an endless-loop magnetic tape cartridge, also called the NAB cartridge or "cart", used in radio broadcasting from 1959 into the late 1990s for commercials and jingles.
FidelityFX
FidelityFX is AMD's open-source suite of image-quality and rendering-effect technologies, distributed through GPUOpen; its Super Resolution (FSR) upscaler competes with Nvidia's DLSS and Intel's XeSS.
FidelityFX Super Resolution
FidelityFX Super Resolution (FSR) is a family of AMD upscaling technologies for Radeon graphics that render games at lower resolution and reconstruct them, adding frame generation in FSR 3 (2023).
FIDIC
FIDIC, the International Federation of Consulting Engineers, is the global body for national consulting engineering associations, known for its standard construction contracts like the Red Book.
Fidji Simo
Fidji Simo is a French-born technology executive who was CEO of Instacart and head of the Facebook app before joining OpenAI as CEO of Applications in 2025.
FIDO (rover)
FIDO, or Field Integrated Design and Operations, was a prototype Mars rover built at NASA's Jet Propulsion Laboratory as a testbed for technologies later flown on Mars rovers.
FidoNet
FidoNet is a worldwide store-and-forward network of bulletin board systems exchanging email and discussion messages over dial-up phone lines, created by Tom Jennings in 1984.
Fiducial marker navigation
Fiducial marker navigation is a localization method for mobile robots that uses printed visual landmarks, such as AprilTags and QR codes, detected by an onboard camera to fix the robot's position.
Field artillery in the American Civil War
Field artillery in the American Civil War (1861–1865) consisted of horse-drawn, muzzle-loading cannon in batteries of four to six guns, led by the 12-pounder Napoleon and the 3-inch Ordnance Rifle.
Field D*
Field D is an interpolation-based path planning and replanning algorithm for mobile robots, developed by Dave Ferguson and Anthony Stentz at Carnegie Mellon University and published in 2006.
Field ration
A field ration, also called a combat ration or ration pack, is a pre-packaged, shelf-stable food supply issued to military personnel in the field, today including the Meal, Ready-to-Eat.
Field sobriety test
A field sobriety test is a series of physical and mental tasks police administer at the roadside to drivers suspected of driving under the influence, to build probable cause for arrest.
Field strength meter
A field strength meter, also called a field intensity or signal level meter, is an instrument with a calibrated antenna and receiver that measures the strength of transmitted radio signals.
Field-effect transistor
The field-effect transistor, also called a unipolar transistor, is a transistor in which an electric field at the gate controls conduction between source and drain.
Field-emission electric propulsion
Field-emission electric propulsion (FEEP) is an electrostatic ion thruster that extracts ions from a liquid metal propellant, delivering finely adjustable micronewton thrust for drag-free spacecraft and precision attitude control.
Field-programmable gate array
A field-programmable gate array (FPGA) is an integrated circuit programmed after manufacture to define its logic, letting designs be recompiled and upgraded in the field.
FieldNET
FieldNET is a remote irrigation management platform developed by Lindsay Corporation in 2006, letting growers monitor and control center pivots, pumps, and sensors from a phone.