Short code: Difference between revisions

Revision as of 06:58, 28 April 2006

Revision as of 15:04, 10 May 2006

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<ref name=Sebesta>Sebesta, W.S Concepts of Programming languages. 2006;M6 14:18 pp.44. ISBN# 0-321-33025-0</ref>

The plural name '''[[Short codes]]''' in a computing context, refers to the language of the same name which was the first actually implemented language<ref name=Sebesta/> used for an electronic computing device. The technique used in programming the device involved using codes which mapped to hardware functions. At the time,the language had to be 'hand coded' or simply put 'manually compiled' to [[machine code]], rather than being able to parse it through a [[lexical analyser]] or [[compiler]]. The technique is named synonymously with [[pseudocodes]], which can be confused with the highlevel language-independent algorithm 'language' representation. Short Code was the predecessor to [[Speedcoding]], which extended Short Code by allowing for floating point calculations and code representation for the four calculation operators (* / + -?)

'''Short codes''', also known '''short numbers''' or '''Common Short Codes''' (CSC) are special telephone numbers, significantly shorter than full telephone numbers, which can be used to address [[Short Message Service|SMS]] and [[Multimedia Messaging System|MMS]] messages from [[mobile telephone]]s. They are designed to be shorter to read out and easier to remember than a normal length [[telephone number]]. While similar to telephone numbers, they are, at the technological level, unique to each operator, although providers generally have agreements to avoid overlaps.

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Messages sent to/from these short codes are known as Premium Rate SMS. Codes are 7 digits in length for MO and 5 (not billed) or 8 (billed) for MT direction, starting with 9, while two or three (depending on billing type=MO/MT) trailing digits express the price, e.g. sms sent to 9090930 is billed for 30 CZK. Leading 3 digits are purpose type prefixes (908=micropayments, 909=adult content, 900=all other), digits at position 4 and 5 determinates the service provider registered by a network operator.

There are also other 4digit shortcodes, used by a network operators for service only purposes (operator dependent)

<ref name=Sebesta>Sebesta, W.S Concepts of Programming languages. 2006;M6 14:18 pp.44. ISBN# 0-321-33025-0</ref>

TheIn a computing context, the plural name '''[[Short codes]]''' in a computing context, refers to the language of the same name which was the first actually implemented language<ref name=Sebesta/> used for an electronic computing device. The technique used in programming the device involved using codes which mapped to hardware functions. At the time,the language had to be 'hand coded' or simply put 'manually compiled' to [[machine code]], rather than being able to parse it through a [[lexical analyser]] or [[compiler]]. The technique is named synonymously with [[pseudocodes]], which can be confused with the highlevel language-independent algorithm 'language' representation. Short Code was the predecessor to [[Speedcoding]], which extended Short Code by allowing for floating point calculations and code representation for the four calculation operators (* / + -?)

== See also (Short Code)==