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ACPI: History, Measurement & Standards

Advanced Configuration and Power Interface (ACPI) is an open standard for operating system, directed configuration and power management. Launched in December 1996 and first available in Windows 98 and Windows 2000, ACPI aims to replace Advanced Power Management (APM), the MultiProcessor Specification, and the Plug and Play BIOS (PnP) Specification. ACPI…

Language: English [EN]
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ACPI topic overview

The analysis highlights History, Measurement and Standards as prominent areas in the source structure around ACPI. 1 topic appears in more than one source area, which can help identify connections that are less obvious in a linear reading.

Related topics
84
Source areas
7
Connected nodes
92
Extracted relationships
108
Related term clusters
29
Bridge connections
92

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Overview · 21 topics
Operating systems · 15 topics
History · 13 topics
OSPM responsibilities · 13 topics
Architecture · 9 topics
Criticism · 7 topics
Interfaces · 7 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Abbreviation
ACPI
Domain
Power management firmware
First published
December 1996
Latest version
6.6 May 2025
Organization
ACPI SIG (1996–2013) · UEFI Forum (2013–present)
Predecessor
Advanced Power Management · MultiProcessor Specification · Plug and Play BIOS

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Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Architecture

History

Operating systems

OSPM responsibilities

Interfaces

Criticism

For the semantics nerds

You can skip this section if you’re here for content ideas and keyword inspiration.

Advanced semantic analysis

How ACPI connects Entity context

The extracted context around ACPI shows recurring relationship patterns in the source. For example, ACPI → ACPI-compliant, ACPICA, AML, BIOS, DSDT, FACS, FADT, Intel's, MADT, MCFG, OS, RSDP, RSDT, SSDT, The AML, UEFI, XSDT Another extracted example is ACPI → All ACPI-conformant, AMD Athlon, C0, C1, C1E, C2, C3, Deep Sleep, Deeper Sleep, Enhanced C1, Enhanced Halt State, Halt, Pentium, Sleep, Stop-Clock, The CPU. Use these groups to spot repeated connection types before inspecting the individual relationships.

ACPI

Top relations

related to Firmware · 17
ACPI → ACPI-compliant, ACPICA, AML, BIOS, DSDT, FACS, FADT, Intel's, MADT, MCFG, OS, RSDP, RSDT, SSDT, The AML, UEFI, XSDT
related to Processor states · 16
ACPI → All ACPI-conformant, AMD Athlon, C0, C1, C1E, C2, C3, Deep Sleep, Deeper Sleep, Enhanced C1, Enhanced Halt State, Halt, Pentium, Sleep, Stop-Clock, The CPU
related to Operating systems · 15
ACPI → ACPI-compliant BIOS, ArcaOS, FreeBSD, GNU/Hurd, HP-UX, Linux, Microsoft's Windows, NetBSD, OpenBSD, OpenVMS, PC, S0ix/Modern Standby, Solaris, Windows, Windows Vista
related to Architecture · 11
ACPI → ACPI BIOS, ACPI Component Architecture, ACPI Machine Language, ACPI Source Language, ACPICA, AML, ASL, BIOS, Much, The ACPI BIOS, Turing-complete
related to Hardware · 9
ACPI → ACPI Machine Language, ACPI-compliant, AML, FFH, Function Fixed Hardware, Intel, Interface, OEM, Standard Intel-based PCs
related to ACPI Component Architecture (ACPICA) · 8
ACPI → ACPICA, ArcaOS, FreeBSD, Haiku, Intel's, Linux, The ACPI Component Architecture, The ACPICA
related to Criticism · 7
ACPI → In November, Linus Torvalds, Linux, Mark Shuttleworth, NSA, NSA's, Ubuntu
related to history · 5
ACPI → August, December, Linux, Microsoft CEO Bill Gates, Windows-only
Predecessor · 3
ACPI → Advanced Power Management, MultiProcessor Specification, Plug and Play BIOS
related to OSPM responsibilities · 3
ACPI → ACPI-compatible, OSPM-compatible, The OSPM

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

operating power system bios state states processor firmware hardware management windows device specification uefi support systems components standard intel acpica

ACPI relationships Subject–Predicate–Object triples

TTTA extracted 108 structured relationships around ACPI. Examples in this analysis include ACPI → Abbreviation → ACPI and ACPI → Domain → Power management firmware. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
ACPIAbbreviationACPI1.00infobox
ACPIDomainPower management firmware1.00infobox
ACPIFirst publishedDecember 19961.00infobox
ACPILatest version6.6 May 20251.00infobox
ACPIOrganizationACPI SIG (1996–2013)1.00infobox
ACPIOrganizationUEFI Forum (2013–present)1.00infobox
ACPIPredecessorAdvanced Power Management1.00infobox
ACPIPredecessorMultiProcessor Specification1.00infobox
ACPIPredecessorPlug and Play BIOS1.00infobox
ACPIRelated standardsUEFI1.00infobox
ACPIStatusPublished1.00infobox
ACPIWebsiteuefi.org/acpi1.00infobox
ACPIis asecurity risk0.90text

Related concept clusters Related term clusters

The concept neighborhoods around ACPI bring nearby vocabulary together. In this analysis, examples include Operating, System and Bios. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • hardware abstraction
    • Interfaces
    • Components
    • Systems
    • Interface
    • Operating
    • Provided
    • Uefi
    • Aml
    • Tables
    • System
    • Specification
    • Power
  • computer hardware
    • Interfaces
    • Components
    • Systems
    • Interface
    • Operating
    • Provided
    • Uefi
    • Aml
    • Tables
    • System
    • Specification
    • Power
  • ACPI
    • Operating
    • System
    • Bios
    • Firmware
    • Specification
    • Power
    • Hardware
    • Support
    • Management
    • Systems
    • Windows
    • Architecture
  • acpi
    • Operating
    • System
    • Bios
    • Firmware
    • Specification
    • Power
    • Hardware
    • Support
    • Management
    • Systems
    • Windows
    • Architecture
  • advanced power management
    • Management
    • Power
    • December
    • Multiprocessor
    • State
    • Device
    • System
    • Operating
    • Specification
    • States
    • Architecture
    • Bios
  • multiprocessor specification
    • Interfaces
    • Released
    • Revision
    • Specification
    • Support
    • Architecture
    • Also
    • System
    • Hardware
    • Acpica
    • Components
    • Power
  • plug and play bios
    • Uefi
    • Systems
    • Operating
    • Components
    • Firmware
    • Tables
    • Windows
    • December
    • Multiprocessor
    • Management
    • Specification
    • Hardware
  • bios
    • Uefi
    • Systems
    • Operating
    • Components
    • Firmware
    • Tables
    • Windows
    • December
    • Multiprocessor
    • Management
    • Specification
    • Hardware

Connections between topic areas Semantic bridges

For ACPI, one of the stronger structural bridges in this analysis connects ACPI with Overview. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
ACPI — Overview · splits 71 ⟂ 22
ACPI — Operating systems · splits 77 ⟂ 16
ACPI — History · splits 79 ⟂ 14
ACPI — OSPM responsibilities · splits 79 ⟂ 14
ACPI — Architecture · splits 83 ⟂ 10
ACPI — Interfaces · splits 85 ⟂ 8
ACPI — Criticism · splits 85 ⟂ 8

Map overview Semantic statistics

ACPI

Nodes93
Edges92
Triples108
Avg. degree1.98
Density0.021505
Components1

Source & methodology

TTTA analyzes the structure around ACPI to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Measurement & Standards, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — ACPI · EN edition · Analysis: TopicsToTalkAbout

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