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Specialty Expressions: BINARY CODED DECIMAL

ExpressionsDomainDefinition
Binary coded decimalComputingA binary-coded notation in which each of the decimal digits is represented by a binary numeral; a binary code using the first ten binary numbers to represent the first ten decimal numbers. Source: European Union. (references)
Binary coded decimalComputingBinary coded decimal (BCD, packed decimal) A number representation where a number is expressed as a sequence of decimal digits and then each decimal digit is encoded as a four-bit binary number (a nibble). E.g.decimal 92 would be encoded as the eight-bit sequence 1001 0010. In some cases, the right-most nibble contains the sign (positive or negative). It is easier to convert decimal numbers to and from BCD than binary and, though BCD is often converted to binary for arithmetic processing, it is possible to build hardware that operates directly on BCD. [Do calculators use BCD?] (2001-01-27). Source: The Free On-line Dictionary of Computing..
Binary coded decimal (BCD)BusinessA system that designates a 4 bit binary word for each decimal value of a number. For example, the decimal number 22 would be 0010. Also known as the 8421 code. (references)
Extended Binary Coded Decimal Interchange CodeComputing /eb's*-dik/, /eb'see`dik/, /eb'k*-dik/, /ee`bik'dik`/, /*-bik'dik`/ (EBCDIC) A character set used on IBM dinosaurs and the AS/400 and e-Server. It exists in at least six mutually incompatible versions, all featuring such delights as non-contiguous letter sequences and the absence of serveral punctuation characters fairly important for modern computer languages. IBM adapted EBCDIC from punched card code early in the 1960s and promulgated it as a customer control tactic (see connector conspiracy). In one variant each character is represented by 5 bits and one code (11111?) switches between character sets. US EBCDIC used more or less the same characters as ASCII, but used different code points. Some ASCII characters did not exist in EBCDIC (e.g. square brackets) and EBCDIC had some (cent sign, not sign) that were not in ASCII. As a consequence, the translation between ASCII and EBCDIC was strictly speaking undefined, and IBM never officially defined a complete one. Users defined one translation which resulted in a so-called de-facto EBCDIC containing all the characters of ASCII, that all ASCII-related programs use. Some printers, telex machines, and even electronic cash registers can speak EBCDIC, but only so they can converse with IBM mainframes. For an in-depth discussion of character code sets, and full translation tables, see Guidelines on 8-bit character codes (ftp://ftp.ulg.ac.be/pub/docs/iso8859/iso8859.networking). Here is a simple translation table: Least significant nibble -> 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 ... controls ... 1 2 3 ... controls ... 4 â ä à á ã Ã¥ ç ñ ¢ . < ( + | 5 & é ê ë è í î ï ì ß ! $ * ) ; ^ 6 - / Â Ä À Á à Å Ç Ñ ¦ , % _ > ? 7 ø É Ê Ë È Í ÃŽ Ï ÃŒ ` : # @ ' = " 8 Ø a b c d e f g h i « » ð ý þ ± 9 ° j k l m n o p q r ª º æ ¸ Æ ¤ A µ ~ s t u v w x y z ¡ ¿ Ð [ Þ ® B ¬ £ Â¥ · © § ¶ ¼ ½ ¾ Ý ¨ ¯ ] ´ × C A B C D E F G H I ­ ô ö ò ó õ D J K L M N O P Q R ¹ û ü ù ú ÿ E \ ÷ S T U V W X Y Z ² Ô Ã- Ã’ Ó Õ F 0 1 2 3 4 5 6 7 8 9 ³ Û Ãœ Ù Ú E.g. the EBCDIC code for "A" is hexadecimal "C1". (1999-07-06). Source: The Free On-line Dictionary of Computing..
Serial binary coded decimalComputingA digital data output format where every decimal digit is represented by binary signals on four lines and up to five decimal digits are presented sequentially. Source: European Union. (references)

Source: compiled by the editor from various references; see credits.

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Topics by Level of Interest: BINARY CODED DECIMAL

Topics sorted by level of InterestLevel (1=low, 600=high)   Topics sorted AlphabeticallyLevel (1=low, 600=high)
Extended Binary Coded Decimal Interchange Code43   Extended Binary Coded Decimal Interchange Code43

Source: the editor, created by/for EVE to gauge likely levels of human interest in linguistically triggered topics (compiled across various sources, such as Wikipedia and specialty expression glosses).

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