Question by Abo: Deriving an equations from a logic diagram “Logic and Computer Design Fundamentals 1″?
Refer to the logic diagram opposite and derive an equation
for each of the four circuit outputs x, y, z, and w.

Here is the diagram :

http://img64.imageshack.us/img64/1779/hw3j.png

Best answer:

Answer by Roger
z = not D
y = (D)(C) + (not C)(not D) y is an exclusive NOR
x = (B)(not C)(not D) + (not B)(C)(D)
w = A + (B)(C)(D)

Give your answer to this question below!

Question by devstory: Where can I get the “calculator circuit diagram”?
I’m looking for the calculator circuit diagram.
I got the diagram but it was just part of the calculator circuit diagram such as adder, multiplier, subtracter, divider.
You can see it below site.

http://web.edunet4u.net/%7Ejaehyunk/ch7-2.htm

Although I got the diagram, I can’t mix the part.
Do you understand?
Anyway, I need the calculator circuit diagram.
If you have or know where it is, please answer me.
Thank you.

Best answer:

Answer by bala
Calculator circuits are coming in COB(chip on board) form.
As a result of technology developments COBs costs are drastically reduced.
Thus u can get it in cheaper price!