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Extended Channel Interpretations
Extended Channel Interpretation (ECI) is an extension to the communication protocol that is used to transmit data from a bar code reader to a host when a bar code symbol is scanned. It enables the application software to receive additional information about the intended interpretation of the message contained within the barcode symbol and even details about the scan itself. ECI was developed as a symbology-independent extension of the Global Label Identifier (GLI) system used in the PDF417 bar code. Description In the default mode, where Extended Channel Interpretation is not in effect, the interface between the reader and the host is said to be in "Basic Channel Mode". In this mode, each octet of transmitted data is defined (by the corresponding bar code symbology standard) to correspond directly to a single data character code point in some default character set, normally ISO/IEC 8859-1 (Latin-1). However, when ECI is in effect, the data interface is said to be in "Extended ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communication Protocol
A communication protocol is a system of rules that allows two or more entities of a communications system to transmit information via any kind of variation of a physical quantity. The protocol defines the rules, syntax, semantics (computer science), semantics and synchronization of communication and possible Error detection and correction, error recovery methods. Protocols may be implemented by Computer hardware, hardware, software, or a combination of both. Communicating systems use well-defined formats for exchanging various messages. Each message has an exact meaning intended to elicit a response from a range of possible responses pre-determined for that particular situation. The specified behavior is typically independent of how it is to be Implementation, implemented. Communication protocols have to be agreed upon by the parties involved. To reach an agreement, a protocol may be developed into a technical standard. A programming language describes the same for computations, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Code Page 437
Code page 437 (CCSID 437) is the character set of the original IBM PC (personal computer). It is also known as CP437, OEM-US, OEM 437, PC-8, or DOS Latin US. The set includes all printable ASCII characters as well as some accented letters (diacritics), Greek letters, icons, and line-drawing symbols. It is sometimes referred to as the "OEM font" or "high ASCII", or as "extended ASCII" (one of many mutually incompatible ASCII extensions). This character set remains the primary set in the core of any EGA and VGA-compatible graphics card. As such, text shown when a PC reboots, before fonts can be loaded and rendered, is typically rendered using this character set. Many file formats developed at the time of the IBM PC are based on code page 437 as well. Display adapters The original IBM PC contained this font as a 9×14 pixels-per-character font stored in the ROM of the IBM Monochrome Display Adapter (MDA) and an 8×8 pixels-per-character font of the Color Graphics Adapter ( CGA) ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO/IEC 8859-15
ISO/IEC 8859-15:1999, ''Information technology — 8-bit single-byte coded graphic character sets — Part 15: Latin alphabet No. 9'', is part of the ISO/IEC 8859 series of ASCII-based standard character encodings, first edition published in 1999. It is informally referred to as Latin-9 (and for a while Latin-0). It is similar to ISO 8859-1, and thus also intended for “Western European” languages, but replaces some less common symbols with the euro sign and some letters that were deemed necessary: This encoding is by far most used, close to half the use, by German, though this is the least used encoding for German. ISO-8859-15 is the IANA preferred charset name for this standard when supplemented with the C0 and C1 control codes from ISO/IEC 6429. Microsoft has assigned code page 28605 a.k.a. Windows-28605 to ISO-8859-15. IBM has assigned code page 923 (CCSID 923) to ISO 8859-15. All the printable characters from both ISO/IEC 8859-1 and ISO/IEC 8859-15 are also found in Win ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO/IEC 8859-14
ISO/IEC 8859-14:1998, ''Information technology — 8-bit single-byte coded graphic character sets — Part 14: Latin alphabet No. 8 (Celtic)'', is part of the ISO/IEC 8859 series of ASCII-based standard character encodings, first edition published in 1998. It is informally referred to as Latin-8 or ''Celtic''. It was designed to cover the Celtic languages, such as Irish, Manx, Scottish Gaelic, Welsh, Cornish, and Breton. ISO-8859-14 is the IANA preferred charset name for this standard when supplemented with the C0 and C1 control codes from ISO/IEC 6429. CeltScript made an extension for Windows called Extended Latin-8. Microsoft has assigned code page 28604 a.k.a. Windows-28604 to ISO-8859-14. History ISO-8859-14 was originally proposed for the Sami languages. ISO 8859-12 was proposed for Celtic. Later, ISO 8859-12 was proposed for Devanagari, so the Celtic proposal was changed to ISO 8859-14. The Sami proposal was changed to ISO 8859-15, but it got rejected as an ISO/IEC 8859 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO/IEC 8859-13
ISO/IEC 8859-13:1998, ''Information technology — 8-bit single-byte coded graphic character sets — Part 13: Latin alphabet No. 7'', is part of the ISO/IEC 8859 series of ASCII-based standard character encodings, first edition published in 1998. It is informally referred to as Latin-7 or ''Baltic Rim''. It was designed to cover the Baltic languages, and added characters used in Polish missing from the earlier encodings ISO 8859-4 and ISO 8859-10. Unlike these two, it does not cover the Nordic languages. It is similar to the earlier-published Windows-1257; its encoding of the Estonian alphabet also matches IBM-922. ISO-8859-13 is the IANA preferred charset name for this standard when supplemented with the C0 and C1 control codes from ISO/IEC 6429. Microsoft has assigned code page 28603 a.k.a. Windows-28603 to ISO-8859-13. IBM has assigned Code page 921 to ISO-8859-13. ISO-IR 206 replaces the currency sign at position A4 with the euro sign (€). Codepage layout Differences from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO/IEC 8859-11
ISO/IEC 8859-11:2001, ''Information technology — 8-bit single-byte coded graphic character sets — Part 11: Latin/Thai alphabet'', is part of the ISO/IEC 8859 series of ASCII-based standard character encodings, first edition published in 2001. It is informally referred to as Latin/Thai. It is nearly identical to the national Thai standard TIS-620 (1990). The sole difference is that ISO/IEC 8859-11 allocates non-breaking space to code 0xA0, while TIS-620 leaves it undefined. (In practice, this small distinction is usually ignored.) ''ISO-8859-11'' is not a main registered IANA charset name despite following the normal pattern for IANA charsets based on the ISO 8859 series. However, it is defined as an alias of the close equivalent TIS-620 (which lacks the non-breaking space), and which can without problems be used for ISO/IEC 8859-11, since the no-break space has a code which was unallocated in TIS-620. Microsoft has assigned code page 28601 a.k.a. Windows-28601 to ISO-8859-11 in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO/IEC 8859-10
ISO/IEC 8859-10:1998, ''Information technology — 8-bit single-byte coded graphic character sets — Part 10: Latin alphabet No. 6'', is part of the ISO/IEC 8859 series of ASCII-based standard character encodings, first edition published in 1992. It is informally referred to as Latin-6. It was designed to cover the Nordic languages, deemed of more use for them than ISO 8859-4. ISO-8859-10 is the IANA preferred charset name for this standard when supplemented with the C0 and C1 control codes from ISO/IEC 6429. Microsoft has assigned code page 28600 a.k.a. Windows-28600 to ISO-8859-10 in Windows. IBM has assigned Code page 919 to ISO-8859-10. It is published by Ecma International as ECMA-144. Codepage layout Differences from ISO-8859-1 have the Unicode code point number below the character. ISO-IR 158 Codepage layout ISO-IR 158 is a supplementary ISO 2022 graphical set, containing characters which are absent in ISO-8859-10, but which are required for writing Skolt Sami or histo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO/IEC 8859-9
ISO/IEC 8859-9:1999, ''Information technology — 8-bit single-byte coded graphic character sets — Part 9: Latin alphabet No. 5'', is part of the ISO/IEC 8859 series of ASCII-based standard character encodings, first edition published in 1989. It is designated ECMA-128 by Ecma International and TS 5881 as a Turkish standard. It is informally referred to as Latin-5 or ''Turkish''. It was designed to cover the Turkish language (which is its dominant user, even though it can be used for some other languages too), designed as being of more use than the ISO/IEC 8859-3 encoding. It is identical to ISO/IEC 8859-1 except for the replacement of six Icelandic characters ( Ðð, Ýý, Þþ) with characters unique to the Turkish alphabet ( Ğğ, İ, ı, Şş). ISO-8859-9 is the IANA preferred charset name for this standard when supplemented with the C0 and C1 control codes from ISO/IEC 6429. In modern applications Unicode and UTF-8 are preferred; authors of new web pages and the desig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO/IEC 8859-8
ISO/IEC 8859-8, ''Information technology — 8-bit single-byte coded graphic character sets — Part 8: Latin/Hebrew alphabet'', is part of the ISO/IEC 8859 series of ASCII-based standard character encodings. ISO/IEC 8859-8:1999 from 1999 represents its second and current revision, preceded by the first edition ISO/IEC 8859-8:1988 in 1988. It is informally referred to as Latin/Hebrew. ''ISO/IEC 8859-8'' covers all the Hebrew letters, but no Hebrew vowel signs. IBM assigned code page 916 (CCSIDs 916 and 5012) to it. This character set was also adopted by Israeli Standard SI1311:2002, with some extensions. ISO-8859-8 is the IANA preferred charset name for this standard when supplemented with the C0 and C1 control codes from ISO/IEC 6429. The text is (usually) in logical order, so bidi processing is required for display. Nominally ''ISO-8859-8'' (code page 28598) is for “visual order”, and ISO-8859-8- (code page 38598) is for logical order. But usually in practice, and require ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO/IEC 8859-7
ISO/IEC 8859-7:2003, ''Information technology — 8-bit single-byte coded graphic character sets — Part 7: Latin/Greek alphabet'', is part of the ISO/IEC 8859 series of ASCII-based standard character encodings, first edition published in 1987. It is informally referred to as Latin/Greek. It was designed to cover the modern Greek language. The original 1987 version of the standard had the same character assignments as the Greek national standard ELOT 928, published in 1986. The table in this article shows the updated 2003 version which adds three characters (0xA4: euro sign U+20AC, 0xA5: drachma sign U+20AF, 0xAA: Greek ypogegrammeni U+037A). Microsoft has assigned code page 28597 a.k.a. Windows-28597 to ISO-8859-7 in Windows. IBM has assigned code page 813 to ISO 8859-7. (IBM CCSID 813 is the original encoding. CCSID 4909 adds the euro sign. CCSID 9005 further adds the drachma sign and ypogegrammeni.) ISO-8859-7 is the IANA preferred charset name for this standard (formally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO/IEC 8859-6
ISO/IEC 8859-6:1999, ''Information technology — 8-bit single-byte coded graphic character sets — Part 6: Latin/Arabic alphabet'', is part of the ISO/IEC 8859 series of ASCII-based standard character encodings, first edition published in 1987. It is informally referred to as Latin/Arabic. It was designed to cover Arabic. Only nominal letters are encoded, no preshaped forms of the letters, so shaping processing is required for display. It does not include the extra letters needed to write most Arabic-script languages other than Arabic itself (such as Persian, Urdu, etc.). ISO-8859-6 is the IANA preferred charset name for this standard when supplemented with the C0 and C1 control codes from ISO/IEC 6429. The text is in logical order, so BiDi processing is required for display. Nominally ISO-8859-6 (code page 28596) is for "visual order", and ISO-8859-6-I (code page 38596) is for logical order. But in practice, and required for HTML and XML documents, ISO-8859-6 also stands for log ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO/IEC 8859-5
ISO/IEC 8859-5:1999, ''Information technology — 8-bit single-byte coded graphic character sets — Part 5: Latin/Cyrillic alphabet'', is part of the ISO/IEC 8859 series of ASCII-based standard character encodings, first edition published in 1988. It is informally referred to as Latin/Cyrillic. It was designed to cover languages using a Cyrillic alphabet such as Bulgarian, Belarusian, Russian, Serbian and Macedonian but was never widely used. It would also have been usable for Ukrainian in the Soviet Union from 1933 to 1990, but it is missing the Ukrainian letter ''ge'', ґ, which is required in Ukrainian orthography before and since, and during that period outside Soviet Ukraine. As a result, IBM created Code page 1124. ISO-8859-5 is the IANA preferred charset name for this standard when supplemented with the C0 and C1 control codes from ISO/IEC 6429. The 8-bit encodings KOI8-R and KOI8-U, CP866, and also Windows-1251 are far more commonly used. In contrast to Windows-1252 an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
