Advanced Programmable Interrupt Controller

An Advanced Programmable Interrupt Controller (APIC) is a more intricate Programmable Interrupt Controller (PIC) containing a magnitude more outputs and much more complex priority schemas. Advanced IRQ management.One of the best known APIC architectures, the Intel APIC Architecture, is now replacing the original 8259A PIC in newer x86 PCs.
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<integrated circuit> (APIC) A Programmable Interrupt Controller (PIC) that can handle interrupts from and for multiple CPUs, and, usually, has more available interrupt lines that a typical PIC.
(2003-03-18)