interrupt level

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• Interrupt priority level — The interrupt priority level (IPL) is a part of the current system interrupt state, which indicates the interrupt requests that will currently be accepted. The IPL may be indicated in hardware by the registers in a Programmable Interrupt… …   Wikipedia

• Interrupt storm — In operating systems, an interrupt storm is an event during which a processor receives an inordinate number of interrupts that consume the majority of the processor s time. Interrupt storms are typically caused by hardware devices that do not… …   Wikipedia

• Interrupt — This article is about computer interrupts. For the study of the effect of disruptions on job performance, see Interruption science. In computing, an interrupt is an asynchronous signal indicating the need for attention or a synchronous event in… …   Wikipedia

• Interrupt handler — An interrupt handler, also known as an interrupt service routine (ISR), is a callback subroutine in an operating system or device driver whose execution is triggered by the reception of an interrupt. Interrupt handlers have a multitude of… …   Wikipedia

• Interrupt request — IRQ redirects here. For the country with the ISO 3166 1 country code, see Iraq. The computing phrase interrupt request (or IRQ) is used to refer to either the act of interrupting the bus lines used to signal an interrupt, or the interrupt input… …   Wikipedia

• Keyboard interrupt — has two distinct, but related, meanings: *For high level software, it is a special condition (often implemented as an error code or exception), usually generated by the keyboard. The key combination used is often Control C (for cancel ). This is… …   Wikipedia

• Programmable Interrupt Controller — A Programmable Interrupt Controller (PIC) is a device which allows priority levels to be assigned to its interrupt outputs. When the device has multiple interrupt outputs to assert, it will assert them in the order of their relative priority.… …   Wikipedia

• Current Privilege Level — Schema der Ringe beim x86 System mit Gates zur Kommunikation Der Ring, auch Domain genannt, bezeichnet im Umfeld der Betriebssystem Programmierung und des Multitaskings eine Privilegierungs bzw. Sicherheitsstufe eines Prozesses. Diese schränkt… …   Deutsch Wikipedia

• hardware interrupt —    An interrupt or request for service generated by a hardware device, such as a keystroke or a tick from the clock. Because the processor may receive several such signals simultaneously, hardware interrupts are usually assigned a priority level… …   Dictionary of networking

• non-maskable interrupt — noun A hardware level interrupt that cannot be masked by software, such as a memory parity error …   Wiktionary

• Intel 8259 — The Intel 8259 is a family of Programmable Interrupt Controllers (PICs) designed and developed for use with the Intel 8085 and Intel 8086 8 bit and 16 bit microprocessors. The family originally consisted of the 8259, 8259A, and 8259B PICs, though …   Wikipedia