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VISCII
VISCII is an unofficially-defined modified ASCII character encoding for using the Vietnamese language with computers. It should not be confused with the similarly-named officially registered VSCII encoding. VISCII keeps the 95 printable characters of ASCII unmodified, but it replaces 6 of the 33 control characters with printable characters. It adds 128 precomposed characters. Unicode and the Windows-1258 code page are now used for virtually all Vietnamese computer data, but legacy VSCII and VISCII files may need conversion. History and naming VISCII was designed by the Vietnamese Standardization Working Group (Viet-Std Group) led by Christopher Cuong T. Nguyen, Cuong M. Bui, and Hoc D. Ngo based in Silicon Valley, California in 1992 while they were working with the Unicode consortium to include pre-composed Vietnamese characters in the Unicode standard. VISCII, along with VIQR, was first published in a bilingual report in September 1992, in which it was dubbed the "Vietnamese S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VSCII
VSCII (Vietnamese Standard Code for Information Interchange), also known as TCVN 5712, ISO-IR-180, .VN, ABC or simply the TCVN encodings, is a set of three closely related Vietnamese national standard character encodings for using the Vietnamese language with computers, developed by the TCVN Technical Committee on Information Technology (TCVN/TC1) and first adopted in 1993 (as TCVN 5712:1993). It should not be confused with the similarly-named unofficial VISCII encoding, which was sometimes used by overseas Vietnamese speakers. VISCII was also intended to stand for ''Vietnamese Standard Code for Information Interchange'', but is not related to VSCII. VSCII (TCVN) was used extensively in the north of Vietnam, while VNI was popular in the south. Unicode and the Windows-1258 code page are now used for virtually all Vietnamese computer data, but legacy files or archived messages may need conversion. Encodings All three forms of VSCII keep the 95 printable characters of ASCII unm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VIQR
Vietnamese Quoted-Readable (usually abbreviated VIQR), also known as Vietnet, is a convention for writing Vietnamese using ASCII characters encoded in only 7 bits, making possible for Vietnamese to be supported in computing and communication systems at the time. Because the Vietnamese alphabet contains a complex system of diacritical marks, VIQR requires the user to type in a base letter, followed by one or two characters that represent the diacritical marks. Syntax VIQR uses the following convention: VIQR uses DD or Dd for the Vietnamese letter ''Đ'', and dd for the Vietnamese letter ''đ''. To type certain punctuation marks (namely, the period, question mark, apostrophe, forward slash, opening parenthesis, or tilde) directly after most Vietnamese words, a backslash (\) must be typed directly before the punctuation mark, functioning as an escape character, so that it will not be interpreted as a diacritical mark. For example: : : :: ''What is your name ir My name is Hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TCVN 5712
VSCII (Vietnamese Standard Code for Information Interchange), also known as TCVN 5712, ISO-IR-180, .VN, ABC or simply the TCVN encodings, is a set of three closely related Vietnamese national standard character encodings for using the Vietnamese language with computers, developed by the TCVN Technical Committee on Information Technology (TCVN/TC1) and first adopted in 1993 (as TCVN 5712:1993). It should not be confused with the similarly-named unofficial VISCII encoding, which was sometimes used by overseas Vietnamese speakers. VISCII was also intended to stand for ''Vietnamese Standard Code for Information Interchange'', but is not related to VSCII. VSCII (TCVN) was used extensively in the north of Vietnam, while VNI was popular in the south. Unicode and the Windows-1258 code page are now used for virtually all Vietnamese computer data, but legacy files or archived messages may need conversion. Encodings All three forms of VSCII keep the 95 printable characters of ASCII unm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vietnamese Quoted-Readable
Vietnamese Quoted-Readable (usually abbreviated VIQR), also known as Vietnet, is a convention for writing Vietnamese language, Vietnamese using ASCII characters encoded in only 7 bits, making possible for Vietnamese to be supported in computing and communication systems at the time. Because the Vietnamese alphabet contains a complex system of diacritical marks, VIQR requires the user to type in a base letter, followed by one or two characters that represent the diacritical marks. Syntax VIQR uses the following convention: VIQR uses DD or Dd for the Vietnamese letter ''Đ'', and dd for the Vietnamese letter ''đ''. To type certain punctuation, punctuation marks (namely, the full stop, period, question mark, apostrophe, slash (punctuation), forward slash, opening Bracket#Parentheses ( ), parenthesis, or tilde) directly after most Vietnamese words, a backslash (\) must be typed directly before the punctuation mark, functioning as an escape character, so that it will not be interp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vietnamese Language And Computers
The Vietnamese language is written with a Latin script with diacritics ( accent tones) which requires several accommodations when typing on phone or computers. Software-based systems are a form of writing Vietnamese on phones or computers with software that can be installed on the device or from third party software such as UniKey. Telex is the oldest input method devised to encode the Vietnamese language with its tones. Other input methods may also include VNI (Number key-based keyboard) and VIQR. VNI input method is not to be confused with VNI code page. Historically, Vietnamese was also written in ', which is mainly used for ceremonial and traditional purposes in recent times, and remains in the field of historians and philologists. There have been attempts to type chữ Hán and chữ Nôm with existing Vietnamese input methods, but they are not widespread. Sometimes, Vietnamese can be typed without tone marks, which Vietnamese speakers can usually guess depending on context ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windows-1258
Windows-1258 is a code page used in Microsoft Windows to represent Vietnamese texts. It makes use of combining diacritical marks. Windows-1258 is compatible with neither the Vietnamese standard (TCVN 5712 / VSCII), nor the various other encodings in use in practice (VISCII, VNI, VPS). Rather, it is very similar to Windows-1252, with the differences being that s-caron and z-caron (which were added to Windows-1252 later) are missing, five of the letters with diacritics have been replaced by combining diacritics for Vietnamese tone marks, one has been replaced with the đông sign, and eight others (four per case) have been changed to four otherwise-unsupported Vietnamese letters. Use of combining diacritics means that Windows-1258 can cover the large number of combinations of letters and tone marks in Vietnamese without compromising coverage of control codes or symbols. However it also means that software must be careful to handle conversions between precomposed characters and c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VPS Character Encoding
VPSKeys is a freeware input method editor developed and distributed by the Vietnamese Professionals Society (VPS). One of the first input method editors for Vietnamese, it allows users to add accent marks to Vietnamese text on computers running Microsoft Windows. The first version of VPSKeys, supporting Windows 3.1, was released in 1993. The most recent version is 4.3, released in October 2007.VPSKeys homepage. Features VPSKeys supports the Telex, VISCII, VNI, and VIQR input methods, as well as a number of character encodings. One of its unique features is a "hook/tilde dictionary" (), which provides spelling suggestions for distinguishing words with or tones. This feature is helpful for speakers of dialects in which these two tones have merged. VPS character encoding The "VPS" character encoding for writing Vietnamese replaces several control characters, including several C0 control characters, with letters while including the ASCII graphical characters unmodified, a similar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Character Encoding
Character encoding is the process of assigning numbers to Graphics, graphical character (computing), characters, especially the written characters of Language, human language, allowing them to be Data storage, stored, Data communication, transmitted, and Computing, transformed using Digital electronics, 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 (Windows), character map". Early character codes associated with the optical or electrical Telegraphy, telegraph could only represent a subset of the characters used in written languages, sometimes restricted to Letter case, upper case letters, Numeral system, 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 enc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Combining Character
In digital typography, combining characters are characters that are intended to modify other characters. The most common combining characters in the Latin script are the combining diacritical marks (including combining accents). Unicode also contains many precomposed characters, so that in many cases it is possible to use both combining diacritics and precomposed characters, at the user's or application's choice. This leads to a requirement to perform Unicode normalization before comparing two Unicode strings and to carefully design encoding converters to correctly map all of the valid ways to represent a character in Unicode to a legacy encoding to avoid data loss. In Unicode, the main block of combining diacritics for European languages and the International Phonetic Alphabet is U+0300–U+036F. Combining diacritical marks are also present in many other blocks of Unicode characters. In Unicode, diacritics are always added after the main character (in contrast to some older c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ASCII
ASCII ( ), abbreviated from American Standard Code for Information Interchange, is a character encoding standard for electronic communication. ASCII codes represent text in computers, telecommunications equipment, and other devices. Because of technical limitations of computer systems at the time it was invented, ASCII has just 128 code points, of which only 95 are , which severely limited its scope. All modern computer systems instead use Unicode, which has millions of code points, but the first 128 of these are the same as the ASCII set. The Internet Assigned Numbers Authority (IANA) prefers the name US-ASCII for this character encoding. ASCII is one of the List of IEEE milestones, IEEE milestones. Overview ASCII was developed from telegraph code. Its first commercial use was as a seven-bit teleprinter code promoted by Bell data services. Work on the ASCII standard began in May 1961, with the first meeting of the American Standards Association's (ASA) (now the American Nat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Control Character
In computing and telecommunication, a control Character (computing), character or non-printing character (NPC) is a code point (a number) in a character encoding, character set, that does not represent a written symbol. They are used as in-band signaling to cause effects other than the addition of a symbol to the text. All other characters are mainly printing, printable, or graphic characters, except perhaps for the "space (punctuation), space" character (see ASCII printable characters). History Prosigns for Morse code, Procedural signs in Morse code are a form of control character. A form of control characters were introduced in the 1870 Baudot code: NUL and DEL. The 1901 Murray code added the carriage return (CR) and line feed (LF), and other versions of the Baudot code included other control characters. The bell character (BEL), which rang a bell to alert operators, was also an early Teleprinter, teletype control character. Control characters have also been called "format ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO 646
ISO/IEC 646 is a set of ISO/IEC standards, described as ''Information technology — ISO 7-bit coded character set for information interchange'' and developed in cooperation with ASCII at least since 1964. Since its first edition in 1967 it has specified a 7-bit character code from which several national standards are derived. ISO/IEC 646 was also ratified by ECMA as ECMA-6. The first version of ECMA-6 had been published in 1965, based on work the ECMA's Technical Committee TC1 had carried out since December 1960. Characters in the ISO/IEC 646 Basic Character Set are ''invariant characters''. Since that portion of ISO/IEC 646, that is the ''invariant character set'' shared by all countries, specified only those letters used in the ISO basic Latin alphabet, countries using additional letters needed to create national variants of ISO/IEC 646 to be able to use their native scripts. Since transmission and storage of 8-bit codes was not standard at the time ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
