Logic gates are in every IC and microchip today, they practically control modern electronics.Personally I like to stick with capacitors and resistors and simple stuff like that but thanks to instructables user
rtty21 I learned how to make a NOR gate and now I have countless ideas of what to with them, so here I will discuss some uses of different gates and how to make them. You should at least have a basic knowledge of logic gates to understand this.
A/B=input(s)
Q=output
1=high
0=low
-=sorry about some of the messed up pictures, I'm trying to get it resolved=-
This is perhaps the most simple gate, it has one input and one output. It is known as an inverter because its output is opposite to its input. A representing the input, Q representing the output: Q=NOT A (thus the name "NOT"). There is an IC that uses six NOT gates called a 4049 CMOS hex inverter buffer.
A | Q
1 | 0
0 | 1