Component

Component Personal computer come in a variety of sizes, shapes, and capabilities. While they look different and each has its own unique features, they share surprisingly similar components, including systems boards, microphones, and memory see figures 5-7

In engineering, science, and technology

Generic systems

System components, an entity with discrete structure, such as an assembly or software module, within a system considered at a particular level of analysis
Lumped element model, a model of spatially distributed systems

Electrical

Component video, a type of analog video information that is transmitted or stored as two or more separate signals
Electronic component, a constituent of an electronic circuit
Symmetrical components, in electrical engineering, analysis of unbalanced three-phase power systems

Mathematics

Color model, a way of describing how colors can be represented, typically as multiple values or color components
Component (group theory), a quasi-simple subnormal sub-group
Connected component (graph theory), a maximal connected subgraph
Connected component (topology), a maximal connected subspace of a topological space
Vector component, result of the decomposition of a vector into various directions

Science

Component (thermodynamics), a chemically independent constituent of a phase of a system

Software

Component (UML), definition of component in the Unified Modeling Language
Component-based software engineering, a field within software engineering dealing with reusable software elements
Software component, a reusable software element

Chinese

Chinese character component, a structural unit between Chinese character strokes and Chinese whole characters.

Other uses

Component (VTA), a light-rail station in San Jose, California
Part of the grammatical structure of a sentence, a concept relating to the catena
Component ingredient, in a culinary dish