Advanced Programmable Interrupt Controller and Interrupt

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Difference between Advanced Programmable Interrupt Controller and Interrupt

Advanced Programmable Interrupt Controller vs. Interrupt

In computing, Intel's Advanced Programmable Interrupt Controller (APIC) is a family of interrupt controllers. In system programming, an interrupt is a signal to the processor emitted by hardware or software indicating an event that needs immediate attention.

Conventional PCI

Conventional PCI, often shortened to PCI, is a local computer bus for attaching hardware devices in a computer.

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Intel

Intel Corporation (stylized as intel) is an American multinational corporation and technology company headquartered in Santa Clara, California, in the Silicon Valley.

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Inter-processor interrupt

An inter-processor interrupt (IPI) is a special type of interrupt by which one processor may interrupt another processor in a multiprocessor system if the interrupting processor requires action from the other processor.

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Interrupt

In system programming, an interrupt is a signal to the processor emitted by hardware or software indicating an event that needs immediate attention.

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Interrupt handler

In computer systems programming, an interrupt handler, also known as an interrupt service routine or ISR, is a special block of code associated with a specific interrupt condition.

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Interrupt latency

In computing, interrupt latency is the time that elapses from when an interrupt is generated to when the source of the interrupt is serviced.

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Interrupt request (PC architecture)

In a computer, an interrupt request (or IRQ) is a hardware signal sent to the processor that temporarily stops a running program and allows a special program, an interrupt handler, to run instead.

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Message Signaled Interrupts

Message Signaled Interrupts (MSI) are an alternative in-band method of signaling an interrupt, using special in-band messages to replace traditional out-of-band assertion of dedicated interrupt lines.

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Multiprocessing

Multiprocessing is the use of two or more central processing units (CPUs) within a single computer system.

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Non-maskable interrupt

In computing, a non-maskable interrupt (NMI) is a hardware interrupt that standard interrupt-masking techniques in the system cannot ignore.

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Programmable interrupt controller

In computing, a programmable interrupt controller (PIC) is a device that is used to combine several sources of interrupt onto one or more CPU lines, while allowing priority levels to be assigned to its interrupt outputs.

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