News tagged with interruption

Political strife undermines HIV treatment

As Kenyan citizens negotiated the tensions following the March 4 nationwide elections, memories of the violence that followed the December 2007 vote weighed heavily for many reasons. Among those in any nation ...

Mar 12, 2013
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US abortions see biggest drop in a decade

U.S. abortions fell 5 percent during the Great Recession in the biggest one-year decrease in at least a decade, according to government figures released Wednesday.

Nov 21, 2012
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Interrupt

In computing, an interrupt is an asynchronous signal indicating the need for attention or a synchronous event in software indicating the need for a change in execution.

A hardware interrupt causes the processor to save its state of execution and begin execution of an interrupt handler. Software interrupts are usually implemented as instructions in the instruction set, which cause a context switch to an interrupt handler similar to a hardware interrupt.

Interrupts are a commonly used technique for computer multitasking, especially in real-time computing. Such a system is said to be interrupt-driven.

An act of interrupting is referred to as an interrupt request (IRQ).

The part of a program (usually firmware, driver or operating system service) that deals with the interrupt is referred to as an interrupt service routine (ISR) or interrupt handler.

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