When we think of the definition of a camera, most people would picture their point-and-shoot that they bring on their vacations to Hawaii.
Simply put, a camera is a device that records a moment of time. With that in mind, a number of alternative devices fit this definition. A roll of film in a box with a pinhole is a camera. A scanner, therefore, is also a camera. This idea, inspired by David Hockney, is a skill that I have adopted into my own repertoire.