An interrupt or request for service generated by a hardware device such as a keystroke from the keyboard or a tick from the clock. because the processor may receive several such signals simultaneously, hardware interrupts are usually assigned a priority level, and processed according to that priority.
Hardware interrupt request. in_irq() returns true in a hardware interrupt handler (it also returns true when interrupts are blocked).
a capability where a hardware event causes the software to stop whatever it is doing and to be redirected to a function to handle the interrupt
an electrical signal generated by the adapter or device that is wired directly to the interrupt controller
a signal on a computer bus requesting that the CPU suspend its current task, perform another task, and then return to the original task or program
a signal received by the CPU from the interrupt controller chip that tells the CPU to terminate its current activity and start executing a special service routine called an interrupt handler
a special signal from an I/O device to the computer
An event caused by a hardware device signaling the CPU that it requires service.
Caused bu device signaling that it requires service.
1. when someone cuts in line at the hardware store, or steals your sales clerk. 2. a unique number used by a hardware device to request attention. If two or more devices use the same interrupt, a hardware conflict results.