A diagram that shows a circuit’s components and the connections between them using lines and a set of standard symbols to represent various electronic components. See the illustration. Diagram of an electrical or mechanical system; SYN. schematic drawing.

Purely functional; stripped or otherwise clean of features. Bare bones applications provide only the most basic functions necessary to perform a given task. By the same token, a bare bones computer provides a minimal amount of hardware or is sold at retail with no peripherals and just the operating system (and no other software).