Which of the following is categorized as an output device?

An output device is a piece of hardware that conveys information to the user from the computer. The printer fits this definition as it takes data from a computer and produces a physical copy on paper, making it an essential tool for turning digital information into a tangible format.

The printer operates by translating digital files into a format that can be printed, allowing users to generate hard copies of documents, images, and graphics for various purposes. This capability clearly categorizes printers as output devices, distinguishing them from input devices like keyboards and mice, which are used to enter data into a computer system. Monitors, while also output devices, are primarily for displaying visual data rather than producing physical copies. Thus, the printer stands out as a classic example of an output device in the context provided.