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What is the proper technical term for the characters "high ascii"?

What is the technically correct way to refer to the characters "high ascii" or "extended ascii"? I mean not only the range 128-255, but any character outside the range 0-127.

They are often called diacritical, accented letters, sometimes accidentally called "national" or non-English characters, but these names are either inaccurate or cover only a subset of the possible characters.

What is the correct, exact term that programmers will immediately recognize? And what would be the best English term to use when talking to a non-technical audience?

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8 answers

Non-ASCII Characters

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ASCII character codes above 127 are not defined. many hardware and software vendors have developed their own character set for a value of 128-255. Some chose drawing characters, sone choose accent characters, others choose other characters.

Unicode is an attempt to create a universal set of character codes that includes characters used in most languages. This includes not only traditional Western alphabets, but also Cyrillic, Arabic, Greek and even a large set of characters from Chinese, Japanese and Korean, as well as many other languages, both modern and ancient.

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, , ASCII UTF-8. 128 ASCII. UTF-8 ( Unicode), .

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"Extended ASCII" - , , " 0-127".

Unicode - ASCII , .

UTF-8 - Unicode, ASCII.

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, "trans-ASCII", "supra-ASCII", "ultra-ASCII" .. "meta-ASCII" , -.

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" ASCII", 128-255 . ASCII ( 7-) ; , , . ( > 255 ) ASCII.

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, ASCII, Unicode.

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  • ASCII

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, 1967 , US-ASCII, 0 127. , 128 1967 , , .

1981 IBM 8- ASCII, " 437", . 128 , , , , , . ASCII 128 255.

IBM 5150, "IBM-PC", . , "MS-DOS" ASCII.

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Unicode ASCII.

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