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An interrupt is a signal from a device attached to a computer or from a program within the computer that causes the CPU to stop executing the current program and figure out what to do next. It enable input/output device communicate or get the attention of the processor, and execute a program that need more attention.

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Q: Why you need interrupt?
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Related questions

What is the difference between polling and vectored interrupt system with example?

i need compare between vectored interrupt system and polling


Why do you need 8085 maskable interrupts if they can be disabled?

if u want to execute high priority interrupt,at that time of low priority running.So, we can mask the low priority interrupt and execute the high priority interrupt.


What part of speech is interrupt?

"Interrupt" is a verb.


What is the use of interrupt vector?

An interrupt vector is the memory address of an interrupt handler, or an index into an array called an interrupt vector table or dispatch table. Interrupt vector tables contain the memory addresses of interrupt handlers. When an interrupt is generated, the processor saves its execution state via a context switch, and begins execution of the interrupt handler at the interrupt vector.


What is the purpose of interrupts in Operating System?

Answer: An interrupt is a hardware-generated change-of-flow within the system. An interrupt handler is summoned to deal with the cause of the interrupt; control is then returned to the interrupted context and instruction. A trap is a software-generated interrupt. An interrupt can be used to signal the completion of an I/O to obviate the need for device polling. A trap can be used to call operating system routines or to catch arithmetic errors.Type your answer here...


Why used interrupts?

An interrupt is a signal from hardware (h/w interrupt) or software (s/w interrupt) to indicate the occurence of an event. It indicates the need of a change in execution. Interrupt handling or servicing of the interrupts depends upon the design of the operating system. A routine which will be called for servicing the interrupt is known as interrupt service routine or ISR and the request for the ISR through an interrupt is known as interrupt request or IRQ. Interrupt is a mechanism used for implementing the multitasking concept. It will use the concept of context switching, for servicing the request.


What is an interrupt mask and when and why do you need masking?

masking of interrupts is the temporal disabling of the current code the processor is executing to let higher priority ISRs (interrupt Services Routine) to be executed.


When a computer device is in need of immediate attention it sends the OS?

An interrupt request, or IRQ


What is a sentence with the word interrupt?

"You should not interrupt class," the teacher scolded the boy.


Where is interrupt handler and interrupt vector?

In the 8086/8088, the interrupt vector table is the first 1024 bytes of memory. In the 8085, the interrupt vector table is the first 64 bytes of memory if using the RST form of interrupt, otherwise the interrupt vector is provided by the interrupting device, usually in the form of a CALL instruction. The interrupt handler is wherever the interrupt vector points to.


What is the Prefix of interrupt?

the prefix of interrupt is in


What is the prefix for interrupt?

The prefix for interrupt is "inter-".