3.1.1 Inputs and Outputs

1. Examine the wire diagram on the mini switch and describe how the diagram relates to the concepts of normally open and normally closed.

- The miniswitch has a line with a circle which connects to the other lines when it is a closed circuit and doesn't when it is an opened circuit.

2. If computers only understand digital signals, then how is a computer able to interpret the analog signals coming from the interface?
- The computer converts the analog signals to digital signals to understand them and then converts it back.

3. Why does resistance decrease as the NTC Resistor becomes warmer?
- The warmer the Resistor gets, the easier the flow of energy is.