hanging

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Related to Execution by hanging: Execution by firing squad

hanging

1. 
a. the putting of a person to death by suspending the body by the neck from a noose
b. (as modifier): a hanging offence
2. a decorative textile such as a tapestry or drapery hung on a wall or over a window
3. situated on a steep slope or in a high place

hanging

[′haŋ·iŋ]
(geology)
(metallurgy)
Sticking or wedging of part of the charge in a blast furnace.

hanging

1. The mounting of a door on its frame on hinges.
2. The mounting of an operable window sash in its frame.

abend

(ABnormal END) Pronounced "ab-end." An abend is an unexpected termination that causes the computer, smartphone or tablet to stop responding. The abend occurs either when the processor is presented with instructions or data it cannot recognize, or a program tries to address memory beyond a defined boundary. Abends are generally the result of erroneous software logic in the application or operating system (see anomaly).

Crash, Freeze, Lock Up and Hang
A "crash" occurs when the computer issues a "fault" and deliberately halts that line of execution. The terms "freeze," "lock up" or "hang" may refer to software that is actually still running but has erroneously wound up in an endless, internal loop that renders the program useless. In practice, the terms "crash," "freeze," "lock up" and "hang" are used synonymously. See infinite loop.

Bad Hardware Can Look Like Bad Software
A serious hardware failure will stop a computer-based device that has no redundant components. For example, a short circuit on the motherboard will halt the operation; however, a failing memory cell can cause an instruction to point to an erroneous location, making it look like a software failure.

It Depends on the OS
If the abend occurs due to a bug in an application and the operating system is not resilient, the computer locks up and has to be rebooted. Modern operating systems attempt to halt only the offending application and allow the remaining applications to continue. As operating systems evolve through the years, they become more bug-free themselves and more tolerant of application bugs. However, all operating systems are not 100% foolproof, and bad applications do cause operating systems to crash; a major motivation for virtualizing computers (see virtualization and virtual machine).

A Miracle It All Works
If you consider what goes on inside a computer, you might wonder why it does not crash more often. An ordinary home computer can easily have 64 billion memory (RAM) cells. Every second, millions of them switch their status between charged and uncharged (1 to 0; 0 to 1). If only one cell fails, it can cause an instruction to be invalid, and an abend can occur. See head crash, GPF, active area and transistor concept.



Abending
The green blocks are machine instructions executed by the CPU one after the other until a branch (jump) instruction breaks the sequence and points to an instruction elsewhere in the program. Abending (crashing, hanging, etc.) occurs when the program erroneously points outside of its address space, typically due to bad logic.
References in periodicals archive ?
But, even if Saddam is sentenced to execution by hanging, it could take months for the verdict to be carried out.
The eight defendants face possible execution by hanging if convicted on charges of crimes against humanity in a crackdown against Shiites in the town of Dujail, launched after a 1982 assassination attempt against the then-Iraqi leader.
In its annual report, the human rights group highlighted the secret execution by hanging of former police officer Susumu Kitagawa.
Saif al-Islam will be charged for urging supporters to kill demonstrators and revolutionaries during last year's uprising, and will face execution by hanging if he is found guilty.
But she remains in prison in Tabriz and subject to execution by hanging.
Saddam and seven former members face possible execution by hanging if convicted on charges of crimes against humanity in a crackdown against Shi'ites in the town of Dujail, launched after a 1982 assassination attempt against the then-Iraqi leader.
Saddam and seven former members of his regime are on trial over a crackdown against residents of the town of Dujail, and they face a possible execution by hanging if found guilty.
Tehran, Dec 29 (ANI): Iran, which is already facing criticism for sentencing a woman to death by stoning, has failed to silence international outcry by instead pursuing an execution by hanging.
Saddam and seven former members of his regime face possible execution by hanging if convicted on charges of crimes against humanity in a crackdown against Shiites in the town Dujail in the 1980s.
According to previous reports, in a ruling from the Iranian Supreme Court, Nadarkhani was sentenced to execution by hanging for, "turning his back on Islam" and "converting Muslims to Christianity."
If convicted, they all face possible execution by hanging.