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COM Express
COM Express is a computer-on-module standard ratified by PICMG in 2005, where a module carrying CPU, memory, and BIOS plugs into a custom carrier board.
Comac
Comac, formally the Commercial Aircraft Corporation of China, is a Chinese state-owned aircraft manufacturer in Shanghai that builds the C919 airliner and C909 regional jet.
Comac C909
The Comac C909, developed as the ARJ21, is a Chinese regional jet seating 78 to 97 passengers, in service with Chengdu Airlines since June 2016.
Comac C919 (中国商用飞机有限责任公司)
Comac C919 is a narrow-body airliner developed by China's Commercial Aircraft Corporation (COMAC). It is the nation's first jet designed to meet international airworthiness standards.
Comac C929
The Comac C929 is a wide-body airliner developed by China's COMAC, planned with about 280 seats, a 12,000 km range, and Air China as launch customer.
Comac C939
The Comac C939 is a proposed large twin-aisle airliner from China's COMAC, announced in pre-research in December 2024 as a larger successor to its C929 wide-body.
Comac C949
The Comac C949 is a proposed low-boom supersonic airliner studied by China's COMAC, designed to cruise at Mach 1.6, fly about 11,000 km, and carry 28 to 48 passengers.
Comair Flight 5191
Comair Flight 5191 was a Delta Connection flight that crashed taking off from the wrong runway at Blue Grass Airport in Lexington, Kentucky, in 2006, killing 49 of 50 aboard.
Comanche Peak nuclear power plant
The Comanche Peak nuclear power plant is a two-unit nuclear power station in Glen Rose, Texas, about 40 miles southwest of Fort Worth, generating about 2,400 megawatts.
Comanche power station
The Comanche power station, also called Comanche Generating Station, is a coal-fired power plant in Pueblo, Colorado, owned and operated by Xcel Energy and the largest such plant in the state.
Comanchero Motorcycle Club
The Comanchero Motorcycle Club is an Australian outlaw motorcycle club founded in Sydney in 1966, best known for the 1984 Milperra Massacre and 2009 Sydney Airport brawl.
CoMaps
CoMaps is a free, open source, community-led offline maps and navigation app based on OpenStreetMap, forked from Organic Maps in May 2025 after an open letter raised governance concerns.
Comau
Comau is an Italian industrial automation and robotics company headquartered in Turin, known for automotive body-in-white systems and its NJ series of high-payload industrial robots.
Comb
A comb, also called a hair comb, is a toothed grooming tool for detangling and arranging hair and removing lice, made for at least ten thousand years.
Comb drive
A comb drive is a MEMS electrostatic actuator in which interdigitated conductive fingers pull a suspended mass, giving linear displacement; first demonstrated at UC Berkeley in 1989, it is widely used in gyroscopes, resonators, and micro-mirrors.
Combabula Gas Field
The Combabula Gas Field is an operating coal seam gas field in Queensland's Surat Basin, operated by Australia Pacific LNG, one of its four main producing field areas.
Combat air patrol
A combat air patrol (CAP) is a defensive air mission in which fighters patrol a defined area to intercept and destroy hostile aircraft before they reach their targets.
Combat Aviation Brigade
A combat aviation brigade is a modular US Army aviation formation providing divisions and corps with attack, reconnaissance, air assault, and medical evacuation helicopters under one headquarters.
Combat engineer
A combat engineer, also called a sapper, is a soldier performing engineering duties in close support of fighting forces, including demolitions, minefield clearance, and road building.
Combat engineering
Combat engineering is the branch of military engineering that directly supports land combat forces through mobility, countermobility, and survivability, with combat engineers, or sappers, building bridges, clearing mines, and laying obstacles while fighting as infantry.
Combat knife
A combat knife is a fighting knife designed for military use in hand-to-hand or close-quarters combat, distinct from utility and survival knives, though many serve as both weapon and tool.
Combat Rubber Raiding Craft
The Combat Rubber Raiding Craft is an inflatable boat used by Navy and Marine special operations forces for clandestine insertion, deliverable by parachute, helicopter, submarine, or ship.
Combat shotgun
A combat shotgun, or trench shotgun, is a 12-gauge shotgun configured for military close-quarters fighting and door breaching, first procured by the U.S. Army around 1900.
Combat Vehicle 90
Combat Vehicle 90 (CV90), Swedish: Stridsfordon 90 or Strf 90, is a Swedish family of tracked infantry fighting vehicles developed by Hägglunds, in service since 1994 with ten nations.
Combinatorial clock auction
The combinatorial clock auction (CCA) is a two-stage auction format for selling interrelated items, proposed by Ausubel, Cramton, and Milgrom and widely used for telecom spectrum.
Combinatorial optimization
Combinatorial optimization is the branch of optimization that finds a best object, such as a route, schedule, or matching, from a finite set of discrete candidate solutions.
Combinatorial testing
Combinatorial testing is a software testing method that builds a small covering array covering every interaction of t input parameters, detecting most faults with far fewer tests than exhaustive testing.
Combinatorial thin-film alloy screening
Combinatorial thin-film alloy screening is a materials research method that synthesizes many alloy compositions at once on a single substrate and maps them with automated high-throughput characterization.
Combined Charging System
The Combined Charging System (CCS) is an open, internationally standardized charging system for electric vehicles that combines AC and DC charging at one inlet, introduced in 2012 and dominant in Europe.
Combined cycle
A combined cycle power plant runs a gas turbine and a steam turbine in series, converting far more fuel energy into electricity than a simple-cycle turbine.