Which device is primarily used for output in a computer system?

The printer is primarily used for output in a computer system because it converts digital data from the computer into a physical form that can be viewed, such as printed documents, images, or photos on paper. When you send a command to print from a computer, the printer takes that information and reproduces it in a way that users can read and interact with in the physical world.

In contrast, the keyboard and mouse are considered input devices, as they allow users to enter data and commands into the computer. The keyboard is used for typing text and commands, while the mouse is used to navigate and interact with items on the screen. The microphone, although a device that can capture sound for input, does not provide output in a way that conveys information back to the user in the same manner that a printer does. Therefore, the printer stands out as the device specifically designed for the output function in a computer system.