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Complex event processing
Complex event processing, or CEP, is a real-time data processing method that detects meaningful patterns across event streams, developed by David Luckham at Stanford in the 1990s.
Complex instruction set computer
A complex instruction set computer (CISC) is a processor whose instruction set includes many multi-step instructions, exemplified by the IBM System/360, DEC VAX, and Intel x86.
Complexity class
A complexity class is a set of computational problems decidable by a fixed model of computation within a bound on resources such as running time or memory space.
Complexul Energetic Hunedoara
Complexul Energetic Hunedoara (CEH) was a Romanian state-owned hard-coal electricity producer formed in 2012 by merging the Mintia and Paroșeni power plants with coal mining operations.
Complexul Energetic Oltenia
Complexul Energetic Oltenia (CE Oltenia) is a Romanian state-owned company founded in 2012 that mines lignite in the Oltenia basin and generates electricity, Romania's main lignite producer, now restructuring away from coal toward gas and renewables.
Compliance in physical HRI
Compliance in physical human–robot interaction is the deliberate yielding of a robot to human-applied forces, achieved by mechanical design or control laws such as impedance and admittance control.
Compliant mechanism
A compliant mechanism is a mechanism that gains its mobility fully or partially from the elastic deformation of its flexible parts rather than from rigid-body joints like hinges.
Compliant motion
Compliant motion is the motion of a robotic manipulator whose position is constrained by task geometry, formalized by Matthew T. Mason at Carnegie Mellon in 1981.
Compliant underactuated grippers
Compliant underactuated grippers are robotic end-effectors whose fingers have more degrees of freedom than actuators and deform elastically, so grasps adapt passively to unknown shapes with simple control.
Component diagram
A component diagram is a UML structural diagram that models a software system's components, their provided and required interfaces, and their wiring, showing logical organization rather than physical deployment.
Component mode synthesis
Component mode synthesis (CMS) is a structural dynamics method that reduces large finite element models by representing substructures with few modes and coupling them at interfaces.
Component Object Model
The Component Object Model (COM) is Microsoft's platform-independent, object-oriented system for creating binary software components that interoperate across languages, processes, and computers, underpinning OLE and ActiveX.
Component parts of internal combustion engines
The component parts of an internal combustion engine are the parts that contain combustion and turn its pressure into rotation: the cylinder, piston, connecting rod, and crankshaft, plus block, head, and valve train.
Component video
Component video, or YPbPr, is an analog video interface carrying the picture as three separate signals, the standard analog output of DVD players and early HD televisions.
Component-based software engineering
Component-based software engineering (CBSE), also called component-based development, is a branch of software engineering that builds systems by composing existing, reusable software components instead of writing them from scratch.
Components of jet engines
The components of jet engines include the inlet, compressor, combustor, turbine, and exhaust nozzle; turbofans add a fan, and afterburners raise thrust by about 40 percent.
CompoNet
CompoNet is an open industrial field network, launched by Omron and ODVA in 2006, that connects sensors, actuators, and remote I/O devices to controllers using the Common Industrial Protocol.
Composable data stack
Composable data stack: a data architecture of reusable components (Arrow, Substrait, Velox, Ibis) connected by open standards, distinct from the Composable DataOps product and from composable CDP architectures.
Composable security
Composable security is a cryptographic definition in which a protocol is proven indistinguishable from an ideal functionality, so security holds under composition; it originated in Ran Canetti's classical framework.
Compose key
The compose key, known in X11 as Multi key, is a keyboard key that starts short keystroke sequences producing characters not on the key caps, such as é or @.
Composer (model family)
Composer is a family of code-specialized large language models developed by Cursor (Anysphere) for long-horizon agentic coding tasks, post-trained from Kimi K2.5 and available only inside Cursor's products.
Composite airframe
A composite airframe is an aircraft structure whose primary load-bearing components, like fuselage and wings, are built mainly from carbon fiber composites rather than aluminum alloy.
Composite bow
A composite bow is a bow of horn, wood, and sinew glued in layers, powerful enough at short length to arm mounted warriors from the Bronze Age onward.
Composite control
Composite control, also called slow/fast control, combines a slow controller for a robot's rigid model with a fast controller that damps elastic joint or link vibrations.
Composite dynamics identification
Composite dynamics identification is a robot parameter identification method that combines a fast prediction error and a slower tracking error in one update law for fast, robust convergence.
Composite insulator
A composite insulator is an electrical insulator for overhead power lines combining a fiberglass core rod, silicone rubber housing, and metal end fittings, giving high tensile strength at low weight.
Composite material
A composite material is made of a continuous matrix and a discontinuous reinforcement that remain distinct in the finished solid, as in mud bricks and carbon fiber aircraft panels.
Composite order
The Composite order is a Roman classical order of architecture whose capital combines Ionic volutes with Corinthian acanthus leaves, recognized as a separate order in the Renaissance.
Composite overwrapped pressure vessel
A composite overwrapped pressure vessel (COPV) is a lightweight pressure vessel with a carbon fiber overwrap around an inner liner, used for high-pressure gas storage.
Composite pattern
The Composite pattern is a structural design pattern from the Gang of Four's 1994 book that composes objects into part-whole tree structures, letting clients treat leaves and composites uniformly.