Elenco Circuit Maker Sound Plus 200 - Manual (Page 66)

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Project #169
Project #168
You will only hear music if you turn on the slide switch (S1) AND press
the press switch (S2) AND there is light shining on the photoresistor (RP).
This is referred to as an AND gate in electronics. The lamp (L4) is only
used to limit current and will not light.
This concept is important in computer logic.
Example: If condition W, condition X, AND condition Y are true, then
execute instruction Z.
Music AND Gate
You will hear music if you turn on the slide switch (S1) OR press the
press switch (S2) OR there is light shining on the photoresistor (RP).
This is referred to as an OR gate in electronics. The lamp (L4) is only
used to limit current and will not light.
This concept is important in computer logic.
Example: If condition W, condition X, OR condition Y is true, then
execute instruction Z.
Music OR Gate
CM-200_Manual_031914.qxp_CM-200_Manual_031914 4/2/14 12:05 PM Page 66