There are about 10 different truths on earth: those that accept Liberty, and those that accept statism.
Haha.
... So the way you read binary, it's just addition. You start at the far right character and it reads 1 or zero. Then you add and read the 2nd to far right character and it reads 2 or zero. Then you add and read the 3rd to far right character and it reads 4 to zero. Then 8, 16, and 32 and so on.
So "0b100" = "0x4" in hexadecimal format (because of the 0x = hex, and the 0b = binary) = "4" in decimal format.
The pattern repeats until 255, or 8 bits until "111111111", to make up 1 Byte... Most Bytes consist of 8 bits (but not all, although most).