Definition of component

An object that is reusable and can interact with other objects. Note: Every control is a component, but not every component is a control.

Any raw material, ingredient, part or item used to assemble a subassembly, finished good, or used as part of a kit.

In general, a modular unit of code that acts as part of a larger system or structure. For COM, a unit of code built to deliver a well-specified set of services through well-specified interfaces. A component provides an object that a client requests at runtime.

A hardware or software element that is part of a larger system or structure.

An advertising or media item that you create, such as a brochure, business card, letter, ad, webpage, poster, TV commercial, radio spot, poster, tent cards promotional item, point of purchase display, or shelf talker.