Generally speaking, the term alphanumeric refers to anything that consists of only letters and numbers. For example, "ABC123" is an alphanumeric expression. The term may also refer to a device that handles such expressions (contrary to letters-only or numbers-only processing equipment). In telecommunication and computer science, an alphanumeric entity is specifically defined as a characterstring that contains only letters and digits (and sometimes a few other characters, typically punctuation marks). A grapheme designates the atomic unit in written language. ... A numeral is a symbol or group of symbols that represents a number. ... BlackBerry 7100t Telecommunication is the extension of communication over a distance. ... Wikibooks Wikiversity has more about this subject: School of Computer Science Open Directory Project: Computer Science Collection of Computer Science Bibliographies Belief that title science in computer science is inappropriate Categories: Computer science ... In various branches of mathematics and computer science, strings are sequences of various simple objects (symbols, tokens, characters, etc. ... Punctuation marks are written symbols that do not correspond to either phonemes (sounds) of a spoken language nor to lexemes (words and phrases) of a written language, but which serve to organize or clarify written language. ...
Alphanumeric ranges present a challenge to the address matching process, whether it is being done on the MLOCR, by a vendor's software, or manually.
In whole numeric ranges all single alphanumeric combinations make a match as long as the input record is higher than the numeric low and lower than the numeric high and the ZIP+4 add-on code is the same.
It is acceptable to go from a one-digit numeric to a two-digit numeric (or two-digit numeric to a three-digit numeric, etc.) in a single alphanumeric range record, but it is invalid to go from a single alpha to a double alpha (or double alpha to a triple alpha, etc.).
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