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!

I used to have a software where you could virtually create an electronic circuit and test it. I am drawing a blank and cannot think of the name. Anyone remember / use the software ?? What was it called ?? Is there something similar ??

I installed a software that let me use the PC as an oscilloscope , but
it does not mention how to connect the circuits to be tested with the computer an through which port.Does anyone lead me?
I mean how can I connect that cable to
the circuit ?