Electronics, Boolean Algebra, Help?

Question

I need help with this. I have a circuit with the following...

A'+B'C'


^^ If you don't understand that it's (Inverter A OR'd with inverter B AND'ed with inverter C)

I need that circuit translated into a circuit that ONLY uses NOR Gates. Only NOR gates nothing else.

Thanks you so much if you can help!

Answer 1

Take a four NOR gates. Give B,C as inputs for the first NOR gate.Give A as input to the NOR gate which has its both input pins interconnected.Then Give B' * C' and A' as inputs to the third NOR gate.Then give (A'+( B'*C' ) ) ' as input to the fourth NOR gate which has its both input pins interconnected. Then you get the desired output as A'+B'C'.

opps i dont have anything to draw to show you ! sorry for that !

Answer 2

Use DeMorgan's Theorem to convert B'C' = (B+C)'

Then, everything can be done with two input NORs either normally or run as single input inverters.