00:01
This question is asking us to look at the circuit and take a look at all of its outputs to determine what kind of logic gate this is.
00:12
So first i want to identify what logic gates we're already looking at.
00:16
This is a knot gate.
00:18
This one over here looks like an ore gate, but that circle on the end of it means that it's going to be a knot or or a nor gate.
00:26
It'll just reverse the usual output.
00:29
And these look like and gates with a circle on the end, so nand, a normal and gate, but the output will be reversed.
00:42
Starting here at the top, i want to go ahead and plug in these inputs, zero and zero.
00:48
They get flipped into one and one.
00:51
That would normally give us an input of one, but because this is a norgate, it flips, gives us an output of zero.
01:00
If this was 0 and 1, the only change would be 1 right here.
01:05
That would be flipped to a 0.
01:07
We'd have 1 in 0.
01:09
Normally it'd give us a 1, but since we are flipping it, our output is a 0.
01:15
Next, 1 and 0, these are flipped into a 0 and 1.
01:20
Same thing.
01:22
Output is 0.
01:23
And finally, we have 1 and 1.
01:25
When these get flipped, they will become 0s.
01:32
The nor would, an or gate would normally call this an output of zero, but since it's flipped, this is an output of one.
01:40
So according to this table, the only time we get an output of one is when both of the inputs are one.
01:46
That's what we normally see as an and gate...