4. Challenges: Screen going out, running out of ink or paper, or needed a new printer
5. Benefits: give certain commands when using keyboard and the ability to select the desire icon when using the mouse
6. Challenges: keyboard keys popping off, both equipment stop working,
7. Application to learning: The teacher can use this tool as another teaching tool by allowing the students to type a paper and then print it off. In this case the student will use both input and output devices.
