This document defines and discusses various types of computer output devices. It begins by defining an output device as any hardware that communicates the results of data processing to humans. It then lists and describes common types of output including text, graphics, tactile, audio, and video. The document also provides an overview of the computer processing steps involving input, processing, output, and storage. Examples of specific output devices mentioned include speakers, headphones, printers, LCD monitors, and regular computer monitors. It concludes by categorizing output devices into those that produce visual/printed output, audio output, and devices that use control as output.