2007-03-17 22:09:46 · 5 answers · asked by mrki 1 in Computers & Internet ➔ Other - Computers
In computing, an interrupt is an asynchronous signal from hardware indicating the need for attention or a synchronous event in software indicating the need for a change in execution.
2007-03-17 22:12:32 · answer #1 · answered by Mortis 4 · 0⤊ 0⤋
Interrupt....!
A signal informing a program that an event has occurred. When a program receives an interrupt signal, it takes a specified action (which can be to ignore the signal). Interrupt signals can cause a program to suspend itself temporarily to service the interrupt.
Interrupt signals can come from a variety of sources. For example, every keystroke generates an interrupt signal. Interrupts can also be generated by other devices, such as a printer, to indicate that some event has occurred. These are called hardware interrupts. Interrupt signals initiated by programs are called software interrupts. A software interrupt is also called a trap or an exception.
PCs support 256 types of software interrupts and 15 hardware interrupts. Each type of software interrupt is associated with an interrupt handler -- a routine that takes control when the interrupt occurs. For example, when you press a key on your keyboard, this triggers a specific interrupt handler. The complete list of interrupts and associated interrupt handlers is stored in a table called the interrupt vector table, which resides in the first 1 K of addressable memory.
Also see the list of IRQ numbers in the Quick Reference section of Webopedia.
(v.) To send an interrupt signal
2007-03-17 22:15:25 · answer #2 · answered by mindreader 2 · 1⤊ 0⤋
In computing, an interrupt is an asynchronous signal from hardware 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 via a context switch, 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 similarly 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.
2007-03-17 22:17:35 · answer #3 · answered by Christian Soldier 7 · 0⤊ 0⤋
What Is Interrupt
2016-11-12 06:26:12 · answer #4 · answered by ? 4 · 0⤊ 0⤋
suspend
Dangle
conflict
2007-03-17 22:13:36 · answer #5 · answered by luv2yas 4 · 0⤊ 1⤋