<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <HTML> <HEAD> <META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9"> <TITLE>Linux 2.4.x Initialization for IA-32 HOWTO: Glossary</TITLE> <LINK HREF="Linux-Init-HOWTO-7.html" REL=next> <LINK HREF="Linux-Init-HOWTO-5.html" REL=previous> <LINK HREF="Linux-Init-HOWTO.html#toc6" REL=contents> </HEAD> <BODY> <A HREF="Linux-Init-HOWTO-7.html">Next</A> <A HREF="Linux-Init-HOWTO-5.html">Previous</A> <A HREF="Linux-Init-HOWTO.html#toc6">Contents</A> <HR> <H2><A NAME="s6">6. Glossary</A></H2> <P> <P>AP: Application Processor, any x86 processor other than the Bootstrap Processor on IA-32 SMP systems <P>ACPI: Advanced Configuration and Power Interface <P>APIC: Advanced Programmable Interrupt Controller <P>APM: Advanced Power Management, a BIOS-managed power management specification for personal computers <P>BSP: Bootstrap Processor, the primary booting processor on IA-32 SMP systems <P>BSS: Block Started by Symbol: the uninitialized data segment <P>BKL: Big Kernel Lock, the Linux global kernel lock <P>CRn: Control Register n, i386-specific control registers <P>FPU: Floating Point Unit, a separate math coprocessor device <P>GB: gigabyte (1024 * 1024 * 1024 bytes) <P>GDT: Global Descriptor Table, an i386 memory management table <P>IA: Intel Architecture (also i386, x86) <P>IDT: Interrupt Descriptor Table, an i386-specific table that contains information used in handling interrupts <P>initrd: initial RAM disk (see "linux/Documentation/initrd.txt") <P>IPC: Inter-Process Communication <P>IPI: Inter-processor Interrupt, a method of signaling interrupts between multiple processors on an SMP system <P>IRDA: InfraRed Data Association <P>IRQ: Interrupt ReQuest <P>ISA: Industry Standard Architecture <P>KB: kilobyte (1024 bytes) <P>LDT: Local Descriptor Table, an i386-specific memory management table that is used to describe memory for each non-kernel process <P>MB: megabyte (1024 * 1024 bytes) <P>MCA: Micro Channel Architecture, used in IBM PS/2 computers <P>MP: Multi-processor <P>MSW: Machine Status Word <P>MTRR: Memory Type Range Registers <P>PAE: Physical Address Extension: extends the address space to 64 GB instead of 4 GB <P>PCI: Peripheral Component Interconnect, an industry standard for connecting devices on a local bus in a computer system <P>PCMCIA: Personal Computer Memory Card International Association; defines standards for PCMCIA cards and CardBus PC Cards <P>PIC: Programmable Interrupt Controller <P>PNP: Plug aNd Play <P>PSE: Page Size Extension: allows 4 MB pages <P>SMP: Symmetric Multi Processor/Processing <P>TLB: Translation Lookaside Buffer, i386-specific processor cache of recent page directory and page table entries <P>TSS: Task State Segment, an i386-specific task data structure <P>UP: Uniprocessor (single CPU) system. <P> <HR> <A HREF="Linux-Init-HOWTO-7.html">Next</A> <A HREF="Linux-Init-HOWTO-5.html">Previous</A> <A HREF="Linux-Init-HOWTO.html#toc6">Contents</A> </BODY> </HTML>
