Which of the following are examples of I/O devices?

I/O devices, or Input/Output devices, are essential components in a computer system that facilitate the interaction between the user and the computer's hardware. The correct answer includes a keyboard and a printer, which serve distinct roles in this context.

The keyboard functions as an input device, enabling the user to enter commands, text, and data into the computer. It allows the user to interact directly with the operating system and applications, facilitating communication with the system.

Conversely, the printer serves as an output device. It enables the computer to produce physical copies of digital documents, images, and other forms of data. This transformation from digital to physical format is a key output function, illustrating how information is conveyed to the user in a tangible way.

In summary, the combination of a keyboard and a printer represents both input and output capabilities, thereby exemplifying the quintessential roles that I/O devices fulfill in a computing environment.