Binary code

Computer operated by binary codes ( 0 and 1 : Bit OFF and ON);

Binary code operated by decimal (base 10) }Positional notation};

Base 8

{ 0 1 2 3 4 5 6 7 }

Base 10

{ 0 1 2 3 4 5 6 7 8 9 }

Base 12

{ 0 1 2 3 4 5 6 7 8 9 A B }

Alphanumeric Base 36

{ 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z }

Alphanumeric Base 62

{ 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z a b c d e f g h i j k l m n o p q r s t u v w x y z }

8-bit systems : " 128 / 64 / 32 / 16 / 8 / 4 / 2 / 1 "