- noun a high priority interrupt signal that cannot be blocked by software and overrides other commands.
- An interrupt which requires the immediate attention of the CPU, even if it is handling another interrupt. Non-maskable interrupts are usually reserved for grave situations, such as hardware parity errors. Such an interrupt can not be disabled by another interrupt, while a maskable interrupt can be. Also spelled nonmaskable interrupt. Its abbreviation is NMI.
- acronym NMI
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