What is base two?

Answer 1

"Base 2" is a system of writing numbers using only two digits. For convenience,

you can call them 0 and 1. When numbers are written that way, they're called

"binary" numbers.

Numbers are handled this way at the lowest level inside your computer. It avoids

a lot of mistakes, and it makes the electronics simpler, because the basic electronic

components only have to know the difference between two things, not ten things.

Here are the binary numbers from zero to 15:

0 --- 0

1 --- 1

2 --- 10

3 --- 11

4 --- 100

5 --- 101

6 --- 110

7 --- 111

8 --- 1000

9 --- 1001

10 --- 1010

11 --- 1011

12 --- 1100

13 --- 1101

14 --- 1110

15 --- 1111