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checksum digit

См. также в других словарях:

  • Checksum — Effect of a typical checksum function (the Unix cksum utility). A checksum or hash sum is a fixed size datum computed from an arbitrary block of digital data for the purpose of detecting accidental errors that may have been introduced during its… …   Wikipedia

  • Digit sum — In mathematics, the digit sum of a given integer is the sum of all its digits, (e.g.: the digit sum of 84001 is calculated as 8+4+0+0+1 = 13). Digit sums are most often computed using the decimal representation of the given number, but… …   Wikipedia

  • checksum — 1. noun a digit or character, derived by applying a suitable algorithm to some data, used to check whether errors have occurred in transmission, storage or data entry 2 …   Wiktionary

  • checksum — noun a digit representing the sum of the correct digits in a piece of data, against which comparisons can be made to detect errors …   English new terms dictionary

  • checksum — noun a digit representing the sum of the digits in an instance of digital data; used to check whether errors have occurred in transmission or storage • Hypernyms: ↑confirmation, ↑verification, ↑check, ↑substantiation …   Useful english dictionary

  • Check digit — A check digit is a form of redundancy check used for error detection, the decimal equivalent of a binary checksum. It consists of a single digit computed from the other digits in the message. With a check digit, one can detect simple errors in… …   Wikipedia

  • National identification number — A national identification number, national identity number, or national insurance number is used by the governments of many countries as a means of tracking their citizens, permanent residents, and temporary residents for the purposes of work,… …   Wikipedia

  • European Article Number — A European Article Number (EAN) is a barcoding standard which is a superset of the original 12 digit Universal Product Code (UPC) system developed in North America. The EAN 13 barcode is defined by the standards organisation GS1. It is also… …   Wikipedia

  • Uniform civil number — The uniform civil number ( bg. Единен граждански номер; abbreviated: ЕГН, EGN ) is a 10 digit unique number assigned to each Bulgarian citizen or resident foreign national. It serves as a national identification number. An EGN is assigned to… …   Wikipedia

  • EAN 5 — The EAN/5 is a supplement to the EAN 13 barcode used on books. It is used to give a suggestion for the price of the book.The structure of the barcode is based on the checksum. In order to compute the checksum, multiply each of the digits by… …   Wikipedia

  • Bookland (imaginary place) — Bookland is an imaginary place created in the 1980s in order to reserve an EAN Country Code for books, regardless of country of origin, so that the EAN space can catalog books by ISBN rather than maintaining a redundant parallel numbering… …   Wikipedia

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