Counting in binary is sophisticated technique hardly to figures; but I finally understand but I almost go insane, that is how transistor used to do arithmatic add between 2 bits together.
At first sight you will really hardly found the key concept. I am in electronics for 5 years, but I finally understand the key in my last year.
The hardest part of binary arithmatic (specially adding together bits) are the carry concept / mechanism.
We can just do binary arithmatic using XOR operation, but when we add 1 + 1 the result shoud be 2, but binary limited the output into 0, 1. There is no number 2. This I confuse about.
But, after reading a lots of tutorial I know now that the carry mechanism it self is using another designated circuit. So there are 2 circuit in arithmatic adder.
The carry circuit was OR circuit and the add circuit is XOR operation. So the total is 2 circuits but supplied with same two A and B input. And the output must be 2. So counting in binary need 2 output, in this case 2 LEDs.
Lets build it
First build an XOR circuit and then built the OR circuit and then connect the A, and B input and then connect the 1 LED to XOR circuit and another LED to OR circuit.
At first sight you will really hardly found the key concept. I am in electronics for 5 years, but I finally understand the key in my last year.
The hardest part of binary arithmatic (specially adding together bits) are the carry concept / mechanism.
We can just do binary arithmatic using XOR operation, but when we add 1 + 1 the result shoud be 2, but binary limited the output into 0, 1. There is no number 2. This I confuse about.
But, after reading a lots of tutorial I know now that the carry mechanism it self is using another designated circuit. So there are 2 circuit in arithmatic adder.
The carry circuit was OR circuit and the add circuit is XOR operation. So the total is 2 circuits but supplied with same two A and B input. And the output must be 2. So counting in binary need 2 output, in this case 2 LEDs.
Lets build it
First build an XOR circuit and then built the OR circuit and then connect the A, and B input and then connect the 1 LED to XOR circuit and another LED to OR circuit.
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