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Dictionary:

alphanumeric

  (ăl'fə-nū-mĕr'ĭk, -nyū-) pronunciation also alphameric (-fə-mĕr'ĭk)
adj.
  1. Consisting of both letters and numbers.
  2. Consisting of or using letters, numbers, punctuation marks, and mathematical and other conventional symbols: an alphanumeric code.

[ALPHA(BETIC) + NUMERIC(AL).]

alphanumerical al'pha·nu·mer'i·cal adj.
alphanumerically al'pha·nu·mer'i·cal·ly adv.
 
 
Computer Desktop Encyclopedia: alphanumeric

The use of alphabetic letters mixed with numbers and special characters as in name, address, city and state. The text you're reading is alphanumeric. See alphanumerish.


 
Marketing Dictionary: alphanumeric

Describing a code or string of characters that includes both letters and numbers and/or punctuation marks or mathematical symbols. Most match codes, unique codes assigned to computer records as an identifier, are alphanumeric. For example, a match code might include the first, third, and fourth letters of the last name, the ZIP code, and the house number. The match code for Albert Becker at 761 Brentwood Road in Stamford, Connecticut, would be BCK06905761. See also key code.

 
Dental Dictionary: alphanumeric

adj

Pertaining to a character set that contains letters and numerals and usually other special characters.

 
Columbia Encyclopedia: alphanumeric
(ăl'fənʊmĕr'ĭk) or alphameric (ăl'fəmĕr'ĭk) , the set of letters and numbers. When used in reference to computer input and output, the set usually is expanded to include the upper- and lower-case alphabetic characters (A–Z, a–z), the numeric characters (0–9), and special characters (such as the symbols $, #, and @, mathematical symbols, and punctuation marks). While typically the phrase “alphabetic characters” means only English letters, an alphanumeric character set may also include letters from other languages that also use the Roman alphabet, such as an e with an acute accent (é) or a c with a cedilla (ç).

 
Wikipedia: alphanumeric


Alphanumeric is a collective term used to identify letters of the Latin alphabet and Arabic digits. There are either 36 (single case) or 62 (case-sensitive) alphanumeric characters. The alphanumeric character set consists of the numbers 0 to 9 and letters A to Z.

Computing

In computing terminology, a character stored in alphanumeric form is considerably smaller than storing a 8-bit ASCII character, as each character is only 6 bits in length.

There is no standard for storing 6-bit alphanumeric data. A 6-bit field has 64 possible values, so if only 36 are used in single case, there is room for another 28 characters (usually slashes and other punctuation), making alphanumeric data useful for storing text and website addresses.

Alphanumeric data can be stored even more compactly in computer systems if the storage medium is calculated in base 36, where each numerical position represents a character. Storing characters in base 36 and base 64 (6 bits per character) is more memory efficient for storing text-only data than base 256 (using 8 bits, or a byte, for each character).

Other references

In the TV show ReBoot, "alphanumeric" was an interjection used by Enzo as an equivalent of "cool!" or "awesome!" In the episode "Talent Night", it was used to mean "everything is all right."

See Also

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This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)

 
Translations: Translations for: Alphanumeric

Dansk (Danish)
adj. - alfanumerisk
n. - alfanumerisk tegn

Français (French)
adj. - alphanumérique
n. - alphanumérique

Deutsch (German)
adj. - alphanumerisch
n. - Zeichen, das weder ein Buchstabe noch eine Zahl ist

Ελληνική (Greek)
adj. - αλφαριθμητικός

Español (Spanish)
adj. - alfanumérico
n. - alfanumérico

Svenska (Swedish)
adj. - alfanumerisk

中文（简体） (Chinese (Simplified))
文字数字的, 包括文字与数字的, 有文字数字的物品

中文（繁體） (Chinese (Traditional))
adj. - 文字數位的, 包括文字與數位的
n. - 有文字數字的物品

한국어 (Korean)
adj. - 문자 숫자식의
n. - 문자 숫자식

العربيه (Arabic)
‏(صفه) الترقيم باستعمال الأحرف الأبجديه‏

עברית (Hebrew)
adj. - ‮תו שהוא אות או ספרה (מחשב)‬
n. - ‮תווי האותיות והספרות (מחשב)‬

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Copyrights:

Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2007. Published by Houghton Mifflin Company. All rights reserved.  Read more
Computer Desktop Encyclopedia. THIS COPYRIGHTED DEFINITION IS FOR PERSONAL USE ONLY.
All other reproduction is strictly prohibited without permission from the publisher.
© 1981-2008 Computer Language Company Inc.  All rights reserved.  Read more
Marketing Dictionary. Dictionary of Marketing Terms. Copyright © 2000 by Barron's Educational Series, Inc. All rights reserved.  Read more
Dental Dictionary. Mosby's Dental Dictionary. Copyright © 2004 by Elsevier, Inc. All rights reserved.  Read more
Columbia Encyclopedia. The Columbia Electronic Encyclopedia, Sixth Edition Copyright © 2003, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/  Read more
Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Alphanumeric".  Read more
Translations. Copyright © 2007, WizCom Technologies Ltd. All rights reserved.  Read more

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