An AbEnd (also ab normal 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". [4]

The most common were ABEND 0C7 (Data exception) and ABEND 0CB (Division by zero) [3]

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 .

See also