At least one 3rd party vendor (Oracle) also has its own different list of numeric assignments.
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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.
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When, early in the history of personal computers, users didn't find their character encoding requirements met, private or local code pages were created using Terminate and Stay Resident utilities or by re-programming BIOS EPROMs.
Morse code | Jimmy Page | Internal Revenue Code | Patti Page | The Chicago Code | Bettie Page | The Da Vinci Code | Chapter 11, Title 11, United States Code | ZIP code | The Front Page | source code | Page | Handley Page Halifax | International Code of Zoological Nomenclature | Ellen Page | DVD region code | Criminal Code of Canada | Uniform Code of Military Justice | Larry Page | Handley Page | code | Page McConnell | Baudot code | web page | Universal Product Code | Page County, Virginia | United States House of Representatives Page | United States Code | QR code | International Civil Aviation Organization airport code |
FreeKEYB is a Unicode-based dynamically configurable successor of K3PLUS supporting most keyboard layouts, code pages, and country codes.
IBM iSeries systems designate code page CCSID 13488 for UCS-2 character encoding, CCSID 1200 for UTF-16 encoding, and CCSID 1208 for UTF-8 encoding.
Some IBM mainframes do have true DBCS code pages, which contain only the double byte portion of a multibyte code page.
A supplemental feature was that the block graphic characters of code page 437 remained unchanged (IBM's official Central-European code page 852 did not have this property, making programs like Norton Commander look funny with corners and joints of border lines broken by accented letters).