Editing RS-Latch and the forbidden state (section)

== Introduction ==

Usually the RS-Latch (R=Reset, S=Set) (in the NOR and NAND variant) is introduced as an 'existing' circuit with a litte table that describes the behaviour:
[[File:RS truthtable.png]]

The important state is {{Off}}{{Off}} where the current value keeps the same and is saved! Therefore we can now build circuits that can save values and implement behaviour based on these previously saved values.

Alright that's it! Everything is clear and we can go on with life...

'''Except it's not! Nothing is clear!'''

There are so many open questions:
<blockquote>
#What even is a latch?
#I heard it is also called a flip-flop?! What's the difference?
#Why is there an error state?
#What happens if i go into the error state anyways?
#Is there a way that I can come up with this circuit by myself?
#There is also a NAND latch explained in the manual, is that the same?
#Is that supposed to be a delay line? What is the connection?
#What about other latches and flip-flops? Like JK or T and other random letters?
</blockquote>

These are all valid questions, that will be answered (in some way or another)!