Computer questions:Who defined the binary system?

Wal.nut$ asked:


the options:
A.D. Leibnir
Pascal
Newton
Aristotle
None of these

And another one –
What is the addition of 101010 with 111111 ?
1101001
1001001
1111001
1100001
None of these
Umm Green_meklar,
Thanks for the first one but i didnt get how 101010+ 111111 = 42 + 63 = 105 = 1101001.
How did you get 42+63?