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I think it is:

0 is "no" electrical signal

1 is "Yes" electrical signal

It's like a combination to a lock and eack letter or key is in it's own safe.

Look up how to solve lines of binary code.

A=01000001

a=01100001

B=01000010

b=01100010

C=01000011

d=01100011

%=00100110

and so on...

Here is a coder link.

http://www.roubaixinteractive.com/PlayGround/Binary_Conversion/Binary_To_Text.asp

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Q: Why is 0 considered 'off' and 1 considered 'on' in computers?
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A device that works on the idea that something is on or off. In computers 0=off 1=on. The abacus was considered digital because the beads were either on of off.


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