question

dlmcknny63

Joined May 25, 2008
11
what is the inputs of A and B if the output of a two-input NAND gate is a zero

mik3

Joined Feb 4, 2008
4,843
what is the inputs of A and B if the output of a two-input NAND gate is a zero
The inputs may be
A=0, B=0
A=0, B=1
A=1, B=0

If the inputs are A=1, B=1 then the output is 1

dlmcknny63

Joined May 25, 2008
11
Thank You Sir...........

thingmaker3

Joined May 16, 2005
5,084
Methinks there be a typo here...

SgtWookie

Joined Jul 17, 2007
22,210
If the inputs are A=1, B=1 then the output is 1
No soup for you!

NAND truth table:
Rich (BB code):
A B |Out
----+---
0 0 | 1
0 1 | 1
1 0 | 1
1 1 | 0
[eta] No soup for me, either!

Last edited:

thingmaker3

Joined May 16, 2005
5,084
Methinks there STILL be typos here! No soup for either of you!

"NAND" means "NOT AND." (But you knew that.) "AND" means both i/p must be high for the output to be high. (But you knew that.) "NOT" means, we invert the output. (But you knew that, too.)

mik3

Joined Feb 4, 2008
4,843
Ohhh!!! You are right thingmaker, he wants a NAND gate and not an AND gate. I was not very carefull and i didnt notice that. Thus the correct answer is:

You get a 1 on the output if
A=0, B=0
A=0, B=1
A=1, B=0

If the inputs are A=1, B=1 then the output is 0

I am sorry for the wrong answer dlmcknny63