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CoffeeScript
CoffeeScript is a programming language created by Jeremy Ashkenas and first released in 2009 that compiles one-to-one into JavaScript, replacing JavaScript's C-style punctuation with significant whitespace and shorthand syntax.
Cofferdam
A cofferdam is a temporary water enclosure pumped dry to allow construction work, used for bridge piers, dam foundations, locks, and shoreline repair, and removed afterward.
Cofiring biomass in coal plants
Cofiring biomass in coal plants means burning biomass with coal in existing coal-fired power plants, replacing part of the fossil fuel and reducing net CO2 emissions.
Cofiroute
Cofiroute, created in 1970, is a French motorway concession company wholly owned by Vinci, operating 1,111 km of toll motorways including the A10 and A11.
Cofrentes nuclear power plant
The Cofrentes nuclear power plant (Central Nuclear de Cofrentes) is a boiling water reactor in Valencia, Spain, wholly owned by Iberdrola and scheduled to close in 2030.
Cog (ship)
The cog, or Kogge, was a single-masted cargo ship of northern Europe used from the 12th to the 15th century, the main merchant vessel of the Hanseatic League.
Cogeco
Cogeco, also known as Cogeco Inc., is a Canadian holding corporation founded in Montréal in 1957 by Henri Audet, serving 1.6 million subscribers through Cogeco Communications and Cogeco Media.
Cogeneration
Cogeneration, also called combined heat and power (CHP), is the concurrent production of electricity and useful heat from one fuel source, achieving efficiencies of 60 to 80 percent.
Cogentrix
Cogentrix is an American independent power producer founded in Charlotte, North Carolina, in 1983, which develops and manages fossil and renewable generating plants, including 10 natural gas facilities totaling about 5,500 MW.
Cognex
Cognex Corporation, founded in 1981 by Dr. Robert J. Shillman, is an American maker of industrial machine vision systems and barcode readers, headquartered in Natick, Massachusetts, and traded on Nasdaq as CGNX.
Cognite
Cognite is a Norwegian industrial software and AI company, founded in 2017 by Aker and John Markus Lervik, known for its Cognite Data Fusion platform.
Cognition acquisition of Windsurf
The Cognition acquisition of Windsurf was a July 2025 deal in which Cognition AI bought the AI coding startup after Google paid $2.4 billion for its founders.
Cognition AI
Cognition AI, also called Cognition Labs, is an American AI company founded in 2024 and based in San Francisco, best known for Devin, an AI agent marketed as the first AI software engineer.
Cognitive computer
A cognitive computer, also known as a neuromorphic chip, is a computer system that simulates human thought and learning, exemplified by IBM's Watson, which won Jeopardy! in 2011.
Cognitive radar
Cognitive radar is an adaptive radar that continuously senses its environment, learns from observations, and adjusts its transmitted waveforms and processing to optimize performance; the term was coined by Simon Haykin in 2006.
Cognitive radio
Cognitive radio is a wireless communication technology in which a radio device dynamically adjusts its transmissions to exploit unused licensed spectrum, called white space, without interfering with primary users.
Cognitive walkthrough
The cognitive walkthrough is a usability inspection method in which evaluators step through tasks, simulating a new user's problem solving to find learnability problems without real users.
Cognizant
Cognizant, also known as Cognizant Technology Solutions, is an American multinational IT consulting and technology services company headquartered in New Jersey, with over $21 billion in 2025 revenue.
Cognyte
Cognyte Software Limited is an Israeli investigative analytics software company serving government security and law enforcement customers. Formed by Verint Systems, it became independent on Nasdaq in 2021.
CogVideoX
CogVideoX is an open-source text-to-video and image-to-video diffusion-transformer model family first released in 2024 by Zhipu AI, described as the first commercial-grade open-source video generation model.
CogView
CogView is a family of Chinese text-to-image generation models developed by Zhipu AI and Tsinghua University, beginning in 2021 and continuing through CogView4 in 2025.
CogVLM
CogVLM is an open-source vision-language model family from Tsinghua University's KEG lab and Zhipu AI, first published in November 2023 and known for trainable visual expert modules.
CogVLM and CogAgent
CogVLM and CogAgent are open vision-language model families from Tsinghua University's KEG group and Zhipu AI, first released in late 2023 for image understanding and GUI agents.
Cohere
Cohere Inc. is a Canadian technology company founded in 2019 and headquartered in Toronto that builds large language models for enterprise and government customers, including the open-weight Command model family.
Cohere acquisition of Aleph Alpha
The Cohere acquisition of Aleph Alpha is a 2026 business combination between Canada's Cohere and Germany's Aleph Alpha, valued around $20 billion, with dual headquarters in Toronto and Berlin.
Cohere Embed
Cohere Embed is a family of enterprise embedding models by Cohere for semantic search and retrieval-augmented generation; its flagship, Embed v4, launched in April 2025.
Cohere Series E
The Cohere Series E is a reported $600 million funding round led by Germany's Schwarz Group, announced in 2026 at a combined valuation of about $20 billion.
Cohere–Aleph Alpha merger
The Cohere–Aleph Alpha merger is a 2026 business combination between Canadian enterprise AI company Cohere and German sovereign-AI provider Aleph Alpha, announced in April and signed in September.
Coherent Corp.
Coherent Corp., formerly II-VI Incorporated, is an American photonics maker of lasers, optical transceivers, and engineered materials, formed when II-VI acquired Coherent, Inc. in 2022.
Coherent free-space optical communication
Coherent free-space optical communication transmits data by laser light through air or space, detecting the phase as well as the intensity of the light for higher data rates.