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SBCS, or single-byte character set, is used to refer to character encodings that use exactly one byte for each graphic character.An SBCS can accommodate a maximum of 256 symbols, and is useful for scripts that do not have many symbols or accented letters such as the Latin, Greek and Cyrillic scripts used mainly for European languages.
It is the most-used single-byte character encoding in the world. Although almost all websites now use the multi-byte character encoding UTF-8 , as of December 2024 [update] 1.1% [ 4 ] of websites declared ISO 8859-1 which is treated as Windows-1252 by all modern browsers (as required by the HTML5 standard [ 5 ] ), plus 0.3% declared Windows ...
A character is encoded as 1 or 2 bytes. A byte in the range 00–7F is a single byte that means the same thing as it does in ASCII. Strictly speaking, there are 95 characters and 33 control codes in this range. A byte with the high bit set indicates that it is the first of 2 bytes.
5 for an isolated case inside a run of single byte characters. For runs 2 + 2 ⁄ 3 per character plus padding to make it a whole number of bytes plus two to start and finish the run 6 2 + 2 ⁄ 3: 2–6 depending on if the byte values need to be escaped 4–6 for characters inherited from GB2312/GBK (e.g. most Chinese characters) 8 for ...
Single-byte character sets including the parts of ISO/IEC 8859 and derivatives of them were favoured throughout the 1990s, having the advantages of being well-established and more easily implemented in software: the equation of one byte to one character is simple and adequate for most single-language applications, and there are no combining ...
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.
UTF-EBCDIC is a character encoding capable of encoding all 1,112,064 valid character code points in Unicode using 1 to 5 bytes (in contrast to a maximum of 4 for UTF-8). [1] It is meant to be EBCDIC-friendly, so that legacy EBCDIC applications on mainframes may process the characters without much difficulty.
Shift JIS is an extension of the single-byte encoding JIS X 0201:1997, that uses unassigned code points in JIS X 0201 to encode the double-byte JIS X 0208:1997 character set. The lead bytes for the double-byte characters are "shifted" around the 64 halfwidth katakana characters in the single-byte range 0xA1 to 0xDF.