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A QUICK LOOK AT BINARY

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Basically binary is very simple, we as people are used to counting

 in decimal, 1,2,3, etc..., this is known as base 10 as their are 

10 numbers in decimal 0,1,2,3,4,5,6,7,8,9 and no 10 is not one of 

them, to get ten we put 1 and 0 together when we move past 9, 

we do this in order to count higher, obviously, and once we get 

passed 9 we go back to 0 move over one space and put on a 1.



 0

 1

 2

 3

 4

 5

 6

 7

 8

 9 <- Reached the maximum of our numbers in decimal

 10 <- So we move over one place and put on a 1 and start again

 11

 12

 13

 14

 15

 16

 17

 18

 19 <- Again we reach the maximum so we move over one place and 
 add a 1

 20

 21

 ..

 ..

 90 <- And so on till we reach 90

 91

 92

 93

 94

 95

 96

 97

 98

 99 <- Weve now reached the maximum on both numbers so we have to
  move 2 places over and add a 1

100 <- And the cycle starts again





What we have to remember is that decimal has 10 numbers and is 

therefore known as base10, binary only has 2 numbers, 1 and 0 

and is therefore known as base 2, but what happens when we 

try and lay out the binary numbers like we did above with the 

decimal ones?



 0

 1 <- Already weve reached the maximum of binary numbers!

 10 <- Like decimal we move over and start again

 11 <- So quickly weve already run out on both sides

111 <- like the decimal number 1 hundred we move over 2 and 
 start again



As you can see there isnt much to binary, lets count to ten in 

binary to get a little more used to it.



Decimal Binary

------- ------

 0 00

 1 01

 2 10

 3 11

 4 100

 5 101

 6 110

 7 111

 8 1000

 9 1001

 10 1010



See binary is easy enough and if you leave out the first column

you will notice that 4 - 7 look like 0 - 3 and remember its just

like going from 9 to 10 in decimal, move over 1 place and add on

a 1.