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Advanced Configuration and Power Interface (ACPI) is an open standard that operating systems can use to discover and configure computer hardware components, to perform power management (e.g. putting unused hardware components to sleep), auto configuration (e.g. Plug and Play and hot swapping), and status monitoring. It was first released in ...
BIOS Boot Specification: 1.01 [2] 1996/01 BIOS Enhanced Disk Drive Specification (INT 13H) 3.0 [3] 1998/04/20 Bluetooth: 5.0 2010/06/30 Boot Integrity Services API 1.0 [4] 1998/12/28 BTX Chassis Design Guidelines 1.1 2007/02 BTX Interface Specification 1.0b 2005/07 BTX System Design Guide 1.1 2007/02/20 Chassis Air Guide (CAG) 1.1 2003/09 ...
Advanced power management (APM) is a technical standard for power management developed by Intel and Microsoft and released in 1992 [1] which enables an operating system running an IBM-compatible personal computer to work with the BIOS (part of the computer's firmware) to achieve power management.
Example of e820 information from dmesg. e820 is shorthand for the facility by which the BIOS of an x86-based computer system reports the memory map to the operating system or boot loader. [1] It is accessed via the int 15h call, by setting the AX register to value E820 in hexadecimal. It reports which memory address ranges are usable and which ...
XMS—Extended Memory Specification; XNS—Xerox Network Systems; XP—Cross-Platform; XP—Extreme Programming; XPCOM—Cross Platform Component Object Model; XPI—XPInstall; XPIDL—Cross-Platform IDL; XPS—XML Paper Specification; XSD—XML Schema Definition; XSL—eXtensible Stylesheet Language; XSL-FO—eXtensible Stylesheet Language ...
ACPI 1.0 (1996) defines a way for a CPU to go to idle "C states", but defines no frequency-scaling system. ACPI 2.0 (2000) introduces a system of P states (power-performance states) that a processor can use to communicate its possible frequency–power settings to the OS. The operating system then sets the speed as needed by switching between ...
For example, a significant number of major programs, such as SLS, Orion, and ML2 are over budget, behind schedule, and/or otherwise troubled. However, any changes to SLS would likely cause ...
For example, a 900-watt power supply with the 80 Plus Silver efficiency rating (which means that such a power supply is designed to be at least 85% efficient for loads above 180 W) may only be 73% efficient when the load is lower than 100 W, which is a typical idle power for a desktop computer. Thus, for a 100 W load, losses for this supply ...