Code page is another term for character encoding. It consists of a table of values that describes the character set for a particular language. The term code page originated from IBM's EBCDIC-based mainframe systems, but many vendors use this term including Microsoft, SAP, and Oracle Corporation. Vendors often allocate their own code page number to a character encoding, even if it is better known by another name (for example UTF-8 character encoding has code page numbers 1208 at IBM, 65001 at Microsoft, 4110 at SAP).

IBM introduced the concept of systematically assigning a small, but globally unique, 16 bit number to each character encoding that a computer system or collection of computer systems might encounter. The IBM origin of the numbering scheme is reflected in the fact that the smallest (first) numbers are assigned to variations of IBM's EBCDIC encoding and slightly larger numbers refer to variations of IBM's extended ASCII encoding as used in its PC hardware.

With the release of PC-DOS version 3.3 (and the near identical MS-DOS 3.3) IBM introduced the code page numbering system to regular PC users, as the code page numbers (and the phrase "code page") were used in new commands to allow the character encoding used by all parts of the OS to be set in a systematic way.

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.

In information theory and computer science, a code is usually considered as an algorithm which uniquely represents symbols from some source alphabet, by encoded strings, which may be in some other target alphabet. An extension of the code for representing sequences of symbols over the source alphabet is obtained by concatenating the encoded strings.

Page, Pages or Paging may also refer to:

Morgan Page is an American progressive house and electro house DJ from Los Angeles. His most widely recognized tracks are "The Longest Road", "Fight for You" and "In the Air". Morgan has received two Grammy nominations; a personal nomination for best remix with Nadia Ali and in 2009 his song was nominated for best remix (The Longest Road – Deadmau5 Remix). Page is signed to Nettwerk Records worldwide.

Morgan Page was born in 1981, in Burlington, Vermont, and went to Champlain Valley Union High School. Originally signed to the now defunct Fiji Recordings in 1999, Page went on to record for John Digweed's Bedrock label, Satoshi Tomiie's SAW imprint, Force Tracks, and Nordic Trax. Prior to graduating from high school, Page did a weekly show at WRUV 90.1 FM in Burlington, Vermont, then worked as a DJ and station manager at WERS 88.9 FM at Emerson College in Boston, where he attended school. In addition to his original productions, Page has remixed Nadia Ali, Regina Spektor, Madonna, Katy Perry, Meiko, Adam Lambert, Greg Laswell Ashley Tisdale, Nelly Furtado, Stevie Nicks, The B-52s, T. Rex, Uh Huh Her, Tegan and Sara, Coldplay, Korn, Wax Poetic feat. Norah Jones, The Submarines, Jeffree Star and Camila Grey.