ISO 646
ISO 646 is an ISO standard that specifies international variants of the 7 bit ASCII character code. Since the ASCII code specified only the letters used in the English alphabet, other countries using the latin alphabet with extensions needed to create national variants of ASCII to be able to use their native languanges. Since universal acceptance of the 8 bit byte did not exist at that time, the national characters had to be made fit within the constraints of 7 bits, meaning that some of the existing ASCII characters had to be changed.
Some national variants of ASCII are:
The specifics of the changes for some of these variants are given in this table:
Later, when 8 bit characters sets gained more acceptance, the ISO-8859-1 became the preferred method of coding these variants.
Code National standard Country CA CSA Z243.4 Canada DE DIN 66003 Germany DK DS 2089 Denmark NO NS 4551-1 Norway SE Sweden
Binary Decimal Hex ASCII
DE DK/NO SE 0010 0011 35 23 #
# # # 0010 0100 36 24 $
$ $ ¤ 0100 0000 64 40 @
§ @ @ 0101 1011 91 5B [
Ä Æ Ä 0101 1100 92 5C \
Ö Ø Ö 0101 1101 93 5D ]
Ü Å Å 0101 1110 94 5E ^
^ ^ ^ 0110 0000 96 60 `
` ` ` 0111 1011 123 7B {
ä æ ä 0111 1100 124 7C |
ö ø ö 0111 1101 125 7D }
ü å å 0111 1110 126 7E ~
ß ~ ~
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