North Carolina BLET Criminal Investigation Practice Test

The accessory that is commonly used for sound output from a computer is speakers. Speakers convert electrical signals from the computer into audible sound, allowing users to listen to music, videos, system sounds, and other audio outputs. They play a crucial role in enhancing the multimedia experience of a computer.

In contrast, a keyboard is primarily an input device used for typing and data entry, while a scanner is used to convert physical documents into digital format, serving as another form of input. A printer, although capable of producing visual representations of data, outputs in the form of hard copies on paper, rather than sound. This delineates the specific role of speakers in sound output compared to other devices that focus on input or alternative forms of output.