ACPI power management
E186770
ACPI power management is a standardized interface that allows an operating system to control and reduce a computer’s power usage by managing hardware power states and system sleep modes.
All labels observed (4)
| Label | Occurrences |
|---|---|
| ACPI | 1 |
| ACPI (limited, OEM-dependent) | 1 |
| ACPI power management canonical | 1 |
| Advanced Configuration and Power Interface | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1654006 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: ACPI power management Context triple: [Windows 2000, supports, ACPI power management]
-
A.
Intel SpeedStep
Intel SpeedStep is a dynamic frequency and voltage scaling technology by Intel that adjusts processor performance and power consumption on the fly to improve energy efficiency and reduce heat.
-
B.
Intel Demand Based Switching
Intel Demand Based Switching is a power management technology for Intel Xeon processors that dynamically adjusts CPU frequency and voltage based on workload to reduce energy consumption while maintaining performance.
-
C.
Power Architecture
Power Architecture is a RISC-based microprocessor instruction set architecture developed by IBM and its partners, used in a wide range of embedded, server, and high-performance computing systems.
-
D.
KVM
KVM (Kernel-based Virtual Machine) is a Linux kernel module that turns the kernel into a hypervisor, enabling hardware-assisted virtualization of multiple virtual machines.
-
E.
UAC
UAC is the commonly used acronym for the United Athletic Conference, an NCAA Division I FCS college football conference in the United States.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: ACPI power management Target entity description: ACPI power management is a standardized interface that allows an operating system to control and reduce a computer’s power usage by managing hardware power states and system sleep modes.
-
A.
Intel SpeedStep
Intel SpeedStep is a dynamic frequency and voltage scaling technology by Intel that adjusts processor performance and power consumption on the fly to improve energy efficiency and reduce heat.
-
B.
Intel Demand Based Switching
Intel Demand Based Switching is a power management technology for Intel Xeon processors that dynamically adjusts CPU frequency and voltage based on workload to reduce energy consumption while maintaining performance.
-
C.
Power Architecture
Power Architecture is a RISC-based microprocessor instruction set architecture developed by IBM and its partners, used in a wide range of embedded, server, and high-performance computing systems.
-
D.
KVM
KVM (Kernel-based Virtual Machine) is a Linux kernel module that turns the kernel into a hypervisor, enabling hardware-assisted virtualization of multiple virtual machines.
-
E.
UAC
UAC is the commonly used acronym for the United Athletic Conference, an NCAA Division I FCS college football conference in the United States.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
computer hardware interface
ⓘ
power management standard ⓘ |
| abbreviation |
ACPI power management
self-linksurface differs
ⓘ
surface form:
ACPI
|
| aimsTo |
extend battery life on mobile systems
ⓘ
reduce overall system power consumption ⓘ |
| allows | operating system to control hardware power states ⓘ |
| appliesTo |
desktops
ⓘ
laptops ⓘ servers ⓘ |
| basedOn |
ACPI power management
self-linksurface differs
ⓘ
surface form:
Advanced Configuration and Power Interface
|
| contributesTo | energy efficiency of modern computers ⓘ |
| defines | standardized interface between operating system and firmware ⓘ |
| enables | operating system–directed power management ⓘ |
| exposes | power management information to the operating system ⓘ |
| firstIntroducedIn | late 1990s ⓘ |
| interactsWith | embedded controller on many systems ⓘ |
| isUsedBy |
GNU/Linux
ⓘ
surface form:
Linux operating systems
Windows ⓘ
surface form:
Microsoft Windows operating systems
macOS operating systems ⓘ |
| manages |
device power states
ⓘ
processor power states ⓘ system sleep states ⓘ thermal management features ⓘ |
| provides |
methods for AC adapter status reporting
ⓘ
methods for battery status reporting ⓘ methods for controlling system sleep and wake ⓘ methods for device enumeration and configuration ⓘ |
| reliesOn | system BIOS or UEFI firmware ⓘ |
| replaced | legacy APM power management ⓘ |
| requires |
firmware support
ⓘ
operating system support ⓘ |
| standardizedBy | industry consortium including Intel and Microsoft ⓘ |
| supports |
CPU performance and throttling states
ⓘ
S0 working state ⓘ S1 sleep state ⓘ S2 sleep state ⓘ S3 sleep state ⓘ S4 hibernation state ⓘ S5 soft off state ⓘ device hot-plug in some platforms ⓘ fan control policies ⓘ lid open and close events on laptops ⓘ plug and play configuration ⓘ power button events ⓘ runtime power management of devices ⓘ thermal zones for temperature monitoring ⓘ wake events from devices ⓘ |
| uses |
ACPI tables provided by system firmware
ⓘ
AML bytecode interpreted by the operating system ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: ACPI power management Description of subject: ACPI power management is a standardized interface that allows an operating system to control and reduce a computer’s power usage by managing hardware power states and system sleep modes.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Advanced Configuration and Power Interface
this entity surface form:
ACPI