Input devices

• Keyboards (QUERTY, Dvorak, chord, numeric)
• Cursor keys
• mouse (1-3 keys)
• trackballs, trackpads, joystick, 3D-mouse
• Touch screens

• Speech input

• "Graffiti", handwriting, gestures

• Data gloves, data suits, 3D trackers

• Gaze

• Special input devices for people with disabilities
  (e.g., foot mouse, head mouse, lip readers, etc.)

+Cater to variety