NOR element bug

[seaBoar]

I have simple comparator 4-bit and have this problem 

and in SC3 i have this problem. Why when W and W1 is zero NOR element output 1 ? 

[tipa]

Привет, Морской Берег! (красивое имя, однако...)
Файл в формате "ms" загрузите, плиз, а то рисовать совсем лень и время тратить неохота...

[GGoodwin]

Hi seaBoar,

That is the correct behavior of a NOR gate. The simulation is working properly.

I hope these references can help you

Multisim Live > Help > NOR

WIKIPEDIA > Logic gate

WIKIPEDIA > NOR gate

Best regards,

G. Goodwin