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Have you finished the first handout your teacher gave you?If not, go back!!!
Below are four examples of using logic switches to design something. Follow your teacher's instructions for this page.
1. A way to make an OR switch out of an AND switch and three NOT switches. (Why would you do it? Mostly just to see that you can create one kind of switch out of the others...it shows how they relate to each other.)
2. Logic for anti-lock brakes in a car (which turns off the brakes for fractions of seconds until skidding stops)
(on
= pedal is pushed) (on
= skid detected) (on
= brake is on)
3. Referee of coin flip at beginning of a football game (Visiting team makes the call)
(on
= heads) (on
= heads) (on
= Visitors win)
4. A burglar alarm for a room with two windows, two doors, and a key switch to enable the alarm
Window
#1
(on
= window open) Window
#2
(on
= window open) Door
#1
(on
= door open) Door
#2
(on
= door open) Enable
key
(on
= alarm enabled) (on
= siren is on)
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