Joke:There are only 10 types of people in the world: Those who understand binary, and those who don't

First of all to understand this joke you will ned to understand binary.
Understanding binary

First of all binary has a base of 2 (its base-2)is a numeral system that represents numeric values using two symbols, usually 0 and 1.

Counting in binary

Decimal	Binary
Base-10	Base-2
0	0
1	1
2	10
3	11
4	100
5	101
6	110
7	111
8	1000

Now we can count in Binary and we know that 10 = 2 in Binary.So now you can start loling ;)

test