*  Put (√ ) or ( X ):-

1. We use the speakers to listen to music and sounds.   (     )

2. The monitor is an output unit.  (      )

3. The scanner is an output unit.  (     )

4. . We use the printer to print photos.  (    )

5. We use the mouse to see what we do on the computer.  (     )

6. All parts of the computer must be connected to the system  (     )

7. The system unit must be connected to electricity.  (    )

8. We use output units to insert data.   (     )

9. We use the mouse to get information.   (     )

10. We use the speakers to insert data.  (    )

11. We use the monitor to get information.  (     )

12. . We use the keyboard to get information.   (     )

13. We use the printer to get information.   (    )