| 1 | <?xml version='1.0' encoding='UTF-8'?>
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| 2 | <!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
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| 3 | <topic xml:lang="en-us" id="glossentry-apic">
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| 4 | <title>APIC</title>
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| 5 | <body>
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| 6 | <section>
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| 7 | <p>
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| 8 | Advanced Programmable Interrupt Controller, a newer version of
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| 9 | the original PC PIC (programmable interrupt controller). Most
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| 10 | modern CPUs contain an on-chip APIC, called a local APIC. Many
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| 11 | systems also contain an I/O APIC (input output APIC) as a
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| 12 | separate chip which provides more than 16 IRQs. Windows 2000
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| 13 | and later use a different kernel if they detect an I/O APIC
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| 14 | during installation. Therefore, an I/O APIC must not be
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| 15 | removed after installation.
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| 16 | </p>
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| 17 | </section>
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| 18 | </body>
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| 19 | </topic>
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