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The block contains all the letters and control codes of the ASCII encoding. It ranges from U+0000 to U+007F, contains 128 characters and includes the C0 controls, ASCII punctuation and symbols, ASCII digits, both the uppercase and lowercase of the English alphabet and a control character.
Many manufacturers devised 8-bit character sets consisting of ASCII plus up to 128 of the unused codes: encodings which covered all the more used Western European (and Latin American) languages, such as Danish, Dutch, French, German, Portuguese, Spanish, Swedish and more could be made.
A numeric character reference refers to a character by its Universal Character Set/Unicode code point, and a character entity reference refers to a character by a predefined name. A numeric character reference uses the format &#nnnn; or &#xhhhh; where nnnn is the code point in decimal form, and hhhh is the code point in hexadecimal form.
To use alt key codes for keyboard shortcut symbols you’ll need to have this enabled. If you’re using a laptop, your number pad is probably integrated to save space. No problem!
It defined all code points used in the final version except the euro sign and the Z with caron character pair. The final version (shown below) was introduced in Microsoft Windows 98 . Starting in the 1990s, many Microsoft products that could produce HTML included Windows-1252-exclusive characters, but marked the encoding as ISO-8859-1, ASCII ...
In HTML character entity reference, the codes for Ñ and ñ are Ñ and ñ or Ñ and ñ. ñ has its own key in the Spanish and Latin American keyboard layouts (see the corresponding sections at keyboard layout and Tilde#Role of mechanical typewriters). The following instructions apply only to English-language keyboards.
Several 8-bit character sets (encodings) were designed for binary representation of common Western European languages (Italian, Spanish, Portuguese, French, German, Dutch, English, Danish, Swedish, Norwegian, and Icelandic), which use the Latin alphabet, a few additional letters and ones with precomposed diacritics, some punctuation, and various symbols (including some Greek letters).
ASCII was incorporated into the Unicode (1991) character set as the first 128 symbols, so the 7-bit ASCII characters have the same numeric codes in both sets. This allows UTF-8 to be backward compatible with 7-bit ASCII, as a UTF-8 file containing only ASCII characters is identical to an ASCII file containing the same sequence of characters.