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