30. Which of the following typically uses a keyboard for input? A. desktop terminal B. point-of-sale terminal C. financial transaction terminal D. executive workstation E. All of the above
A computer keyboard is an input device used to enter characters and functions into the computer system by pressing buttons, or keys. It is the primary device used to enter text. A keyboard typically contains keys for individual letters, numbers and special characters, as well as keys for specific functions.
