Which of the following devices are only computer input devices? Choose the correct answer from the options given below.

Joystick, touch pad and microphone each only feed data into the computer, placing Statement 2, Statement 4 and Statement 5 in the input group.

Statement 2, a joystick, sends direction and movement signals for games and controls.

Statement 4, a touch pad, senses finger movement to move the pointer.

Statement 5, a microphone, captures sound and turns it into a signal.

Statement 1, a DVD-R, is a storage medium that both reads and writes, and Statement 3, a plotter, is an output device.

A pure input device only supplies data, never displaying results itself.