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Hangs have varied causes and symptoms, including software or hardware defects, such as an infinite loop or long-running uninterruptible computation, resource exhaustion , under-performing hardware , external events such as a slow computer network, misconfiguration, and compatibility problems. The fundamental reason is typically resource ...
In computing, a crash, or system crash, occurs when a computer program such as a software application or an operating system stops functioning properly and exits. On some operating systems or individual applications, a crash reporting service will report the crash and any details relating to it (or give the user the option to do so), usually to ...
The corrective actions typically include placing the computer and associated hardware in a safe state and invoking a computer reboot. Microcontrollers often include an integrated, on-chip watchdog. In other computers the watchdog may reside in a nearby chip that connects directly to the CPU , or it may be located on an external expansion card ...
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This is not a crash screen, however; upon crashing, Windows 1.0 would simply lock up or exit to DOS. This behavior is also present in Windows 2.0 and Windows 2.1 . Windows 3.0 uses a text-mode screen for displaying important system messages, usually from digital device drivers in 386 Enhanced Mode or other situations where a program could not run.
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No permanent hardware damage results from executing the F00F instruction on a vulnerable system; it simply locks up until rebooted. However, data loss of unsaved data is likely if the disk buffers have not been flushed, if drives were interrupted during a write operation, or if some other non- atomic operation was interrupted.