coded character set - определение. Что такое coded character set
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Что (кто) такое coded character set - определение

SYSTEM USING A PRESCRIBED SET OF DIGITAL VALUES TO REPRESENT TEXTUAL CHARACTERS
Character set; Text encoding; International character set; Character code; Charset; Text encodings; Character encodings; Character sets; Legacy encoding; Character Set; Codeset; Legacy character set; Coded character set; Charsets; Coded Character Set; Character repertoire; Character encoding scheme; Character encoding form; Code character; Coded character; Code unit; Symbol set; Draft:List of computer character encodings; Character encoding system; Character coding system; Character coding; IBM Character Data Representation Architecture; Character Data Representation Architecture; IBM CDRA; CDRA; File encoding; File encodings; Convmv; Code set; Unicode encoding model; Character encoding translation; History of character encoding
  • Hollerith 80-column punch card with EBCDIC character set
  • 365x365px
  • [[Punched tape]] with the word "Wikipedia" encoded in [[ASCII]]. Presence and absence of a hole represents 1 and 0, respectively; for example, "W" is encoded as "1010111".
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coded character set         
<character, standard> A mapping from a set of integers to a set of characters. This mapping is generally 1:1 (i.e., bijective), for example, the code position 65 in ASCII maps only to "A", and it's the only position that maps to "A". There are several standard coded character sets, the most widely used is ASCII, generally in its Latin-1 dialect, with Unicode becoming slowly more common; while EBCDIC and Baudot are extinct except in legacy systems. A coded character set may include letters, digits, punctuation, control codes, various mathematical and typographic symbols, and other characters. Each character in the set is represented by a unique character code (or "{code position}"). (1998-10-18)
Universal Coded Character Set         
STANDARD SET OF CHARACTERS DEFINED BY THE INTERNATIONAL STANDARD ISO/IEC 10646
UCS-16; UCS-2; ISO 10646; ISO/IEC 10646; IEC 10646; ISO10646; Universal code (typography); ISO-10646; Universal Code (Typography); ISO/IEC 10646-1; List of Unicode entities; Iso 10646-1; ISO/IEC 10646-1:2000; Universal character set; ISO/IEC JTC1/SC2/WG2; ISO/IEC 10646-1:2000(E); Universal Character Set; 10646-1:1993; ISO/CEI 10646; ISO/IEC 10646-2; ISO/CEI 10646-1; ISO/CEI 10646-2; ISO/IEC 10646-1:1993; ISO/IEC 10646-2:2001; ISO/CEI 10646-2:2001; ISO/CEI 10646-1:1993; ISO/CEI 10646-1:2000; ISO/IEC 10646:1993; ISO/IEC 10646:2000; ISO/IEC 10646:2001; ISO/IEC 10646:2003; ISO/IEC 10646:2011; ISO/IEC 10646:2012; ISO/IEC 10646:2014; ISO/CEI 10646:1993; ISO/CEI 10646:2000; ISO/CEI 10646:2001; ISO/CEI 10646:2003; ISO/CEI 10646:2011; ISO/CEI 10646:2012; ISO/CEI 10646:2014
The Universal Coded Character Set (UCS, Unicode) is a standard set of characters defined by the international standard ISO/IEC 10646, Information technology — Universal Coded Character Set (UCS) (plus amendments to that standard), which is the basis of many character encodings, improving as characters from previously unrepresented typing systems are added.
character encoding scheme         
character repertoire         
<character> The set of all characters onto which a {coded character set} maps integers (code positions). For example, consider these two simple coded character sets: Coded Character Set One: integer 0 -> the character "A" integer 1 -> the character "B" Coded Character Set Two: integer 0 -> the character "B" integer 1 -> the character "A" Both of these coded character sets map to the characters "A" and "B", so they have the same character repertoire. But since the mapping is different (and obviously incompatible), these are different coded character sets. (1998-12-17)
CDRA         
Character Data Representation Architecture
Character encoding         
Character encoding is the process of assigning numbers to graphical characters, especially the written characters of human language, allowing them to be stored, transmitted, and transformed using digital computers.Definition from The Tech Terms Dictionary The numerical values that make up a character encoding are known as "code points" and collectively comprise a "code space", a "code page", or a "character map".
character encoding         
<character> (Or "character encoding scheme") A mapping of binary values to code positions and back; generally a 1:1 (bijective) mapping. In the case of ASCII, this is generally a f(x)=x mapping: code point 65 maps to the byte value 65, and vice versa. This is possible because ASCII uses only code positions representable as single bytes, i.e., values between 0 and 255, at most. (US-ASCII only uses values 0 to 127, in fact.) Unicode and many CJK coded character sets use many more than 255 positions, requiring more complex mappings: sometimes the characters are mapped onto pairs of bytes (see DBCS). In many cases, this breaks programs that assume a one-to-one mapping of bytes to characters, and so, for example, treat any occurrance of the byte value 13 as a carriage return. To avoid this problem, character encodings such as UTF-8 were devised. (1998-10-18)
character set         
<character> 1. A particular mapping between characters and byte strings, i.e. the combination of a particular character encoding (which maps between byte strings and integers) and a particular coded character set (which maps between integers and characters). For example: ASCII (the ASCII coded character set, encoded directly as single-byte values), or UTF-8 (the Unicode coded character set, encoded with an 8-bit transformation method). 2. Occasionally: a character repertoire; or a {coded character set}. (1998-12-17)
CCSID         
IDENTIFIER OF A CODED CHARACTER SET
Coded Character Set Identifier; Coded character set identifier; IBM CCSID; IBM CDRA CCSID; CDRA CCSID
A CCSID (coded character set identifier) is a 16-bit number that represents a particular encoding of a specific code page. For example, Unicode is a code page that has several encoding (so called "transformation") forms, like UTF-8, UTF-16 and UTF-32, but which may or may not actually be accompanied by a CCSID number to indicate that this encoding is being used.
CCSID         
IDENTIFIER OF A CODED CHARACTER SET
Coded Character Set Identifier; Coded character set identifier; IBM CCSID; IBM CDRA CCSID; CDRA CCSID
Coded Character Set IDentification (Reference: IBM)

Википедия

Character encoding

Character encoding is the process of assigning numbers to graphical characters, especially the written characters of human language, allowing them to be stored, transmitted, and transformed using digital computers. The numerical values that make up a character encoding are known as "code points" and collectively comprise a "code space", a "code page", or a "character map".

Early character codes associated with the optical or electrical telegraph could only represent a subset of the characters used in written languages, sometimes restricted to upper case letters, numerals and some punctuation only. The low cost of digital representation of data in modern computer systems allows more elaborate character codes (such as Unicode) which represent most of the characters used in many written languages. Character encoding using internationally accepted standards permits worldwide interchange of text in electronic form.