Abnormal end

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An AbEnd (also abnormal end or abend) is an abnormal termination of software, or a program crash.

This usage derives from an error message from the IBM OS/360, IBM zOS operating systems. Usually capitalized, but may appear as "abend". It is jocularly claimed to be derived from the German word "Abend" meaning "evening".[1]

The most common were ABEND 0C7 (Data exception) and ABEND 0CB (Division by zero)[2]

Errors or crashes on the Novell NetWare network operating system are usually called ABENDs. Communities of NetWare administrators have sprung up around the Internet, such as abend.org.

See also[edit]


  1. ^ "Abend" Archived September 29, 2011, at the Wayback Machine. on dictionary.die.net
  2. ^ List of ABEND codes on madisoncollege.edu

This article is based on material taken from the Free On-line Dictionary of Computing prior to 1 November 2008 and incorporated under the "relicensing" terms of the GFDL, version 1.3 or later.