Etymology- Monitor

The word Monitor is one that has a variety of meanings that all come from the same root meaning. The term was first coined in the 1540s, and means, "senior pupil at a school charged with keeping order, etc.,one who reminds, admonishes, or checks," This definition is still used wildy today and has been added to title such as hall monitor. Monitor is also used to describe the device that transmits images from a television or computer.