|
Mouse
__________ Before you take anything apart
- What voltage(s) are required for this device? ______________________
- Are there any warning labels? ________
- Are there any indicator lights? ________
- Are there any pushbuttons or other switches? ________
- What kinds of tools are needed to get inside the case? ____________________
__________ Open the case – Use the correct type of screwdriver
- Remove the mouse ball by opening its retainer. What do you see inside? __________
____________________________________________________________________
- Is there also a lot of dust or lint? ________
- Open the case.
- How many circuit boards are there? ________
- How many slotted wheels can you see? ________
- Find the switches that you saw outside
- Are they attached to a circuit board? ________
- Can you manipulate the switches from inside the case? ________
__________ Look for sensors
- An optical sensor consists of an LED beaming its light to a receiver, where the beam can
be interrupted by part of the moving mechanism. The LED and receiver may either be
separate, or else built into a package together with a slot where the beam can be
interrupted. How many optical sensors are there? ________
- How do the sensors and slotted wheels indicate where the mouse pointer should appear on
the computer screen? __________________________________________
_____________________________________________________________________
_____________________________________________________________________
Questions for further consideration
- What things were done to simplify assembly?
- Could it be simplified even more?
- What things were done to make the mouse compact?
- Could it be made even smaller?
Take it all apart
- The mouse belongs to your group. Take apart whatever you like. Put parts in the bag.
Separate metal parts for recycling.
- If you want to take anything home, your group must decide fairly who gets what. Intel
coordinators will mediate, if necessary.
|
