Pointing devices

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Across
  1. 3. A mouse replacement used in portable computers
  2. 4. Pressing and releasing the left mouse button quickly
  3. 6. A mouse action that displays a list of commands
Down
  1. 1. Used mainly in playing games
  2. 2. A pointing device similar to an upside down traditional mouse
  3. 5. Devices that put data into the computer