Signed up to the Harvard X CS50 introduction course. I love it.
The base language of computers is 0 and 1 or ON or OFF. Basically because a computer needs electricity to run. So, a computer is either ON or OFF.
A computer runs in bits.
Bits are multiples of 2, so: 1, 2, 4, 8, 16, 32.
You add 0 and 1’s under these bits. For example if you want the number 7, its could look like this:
1 | 2 | 4 | 8 | 16 | 32 |
1 | 1 | 1 | 0 | 0 | 0 |
So 1 + 2 + 4 = 7