Definitions for "Interrupt handler"
A routine executed when an interrupt occurs. Interrupt handlers typically deal with low-level events in the hardware of a computer system, such as a character arriving at a serial port or a tick of a real-time clock.
a piece of code, rather like a subroutine or procedure, that deals with the cause of an interrupt
a routine that gets control when the CPU accepts an interrupt
Keywords:  isr, see
See ISR.
Keywords:  chunk, jumps, receipt, code, processor
a chunk of code in your program that is called ONLY when the interrupt occurs
Code that the processor jumps to on receipt of an interrupt request.