A code is a rule for converting a piece of information (for example, a letter, word, phrase, or gesture) into another form or representation (one sign into another sign), not necessarily of the same type.

In communications and information processing, encoding is the process by which information from a source is converted into symbols to be communicated. Decoding is the reverse process, converting these code symbols back into information understandable by a receiver.

One reason for coding is to enable communication in places where ordinary spoken or written language is difficult or impossible. For example, semaphore, where the configuration of flags held by a signaller or the arms of a semaphore tower encodes parts of the message, typically individual letters and numbers. Another person standing a great distance away can interpret the flags and reproduce the words sent.

Read more about Encodings:  Theory, Other Examples, Codes and Acronyms

Other articles related to "encodings, encoding":

Turned A - Encodings
... The mathematical symbol ∀ is encoded at U+2200 ∀ for all (HTML #8704 forall), in the mathematical operators and symbols in Unicode, and only in a sans-serif form ... The Symbol font includes ∀ at position 34 (which would produce the quotation mark in ASCII and Unicode). ...
Encodings - Codes and Acronyms
... International Air Transport Association airport codes are three-letter codes used to designate airports and used for bag tags ... Station codes are similarly used on railways, but are usually national, so the same code can be used for different stations if they are in different countries ...
Directory Traversal Attack - Variations of Directory Traversal - Unicode / UTF-8 Encoded Directory Traversal
... When Microsoft added Unicode support to their Web server, a new way of encoding../ was introduced into their code, causing their attempts at directory traversal prevention to be circumvented ... Multiple percent encodings, such as %c1%1c %c0%af translated into / or characters ... Percent encodings were decoded into the corresponding 8-bit characters by Microsoft webserver ...
M?.P3rf3ct - Computing Codes
... M m Unicode name LATIN CAPITAL LETTER M LATIN SMALL LETTER M Encodings decimal hex decimal hex Unicode 77 U+004D 109 U+006D UTF-8 77 4D 109 6D Numeric ...
B. - Computing Codes
... character name LATIN CAPITAL LETTER B LATIN SMALL LETTER B encodings decimal hex decimal hex Unicode 0062 ... UTF-8 62 ... Numeric character reference #66 #x42 #98 #x62 ...