interrupt signal
Computing term for a signal sent to a processor to request immediate attention, temporarily halting the current process.
When the CPU receives an interrupt signal, it temporarily suspends the current process.
割り込み is a broader term for 'interruption' or 'cutting in', while 割り込み信号 specifically refers to the electronic signal in computing contexts.
Compound of 割り込み (interruption, from 割り込む 'to cut in') and 信号 (signal).