TWed2k - 讀書會 - [問題]請問12題計算機概論的問題!(需用英文回答)

Johnny Brove
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#1 : 2006-4-28 11:49 AM 全部回覆	送花 (1) 送出中...

The Advanced Configuration and Power Interface (ACPI) specification is an open industry standard first released in December 1996 developed by HP, Intel, Microsoft, Phoenix and Toshiba that defines common interfaces for hardware recognition, motherboard and device configuration and power management. According to its specification[1], "ACPI is the key element in Operating System-directed configuration and Power Management (OSPM)".

The most important element of the standard is power management, of which there have been two major improvements. First, it puts the operating system (OS) in control of power management. Conversely, the previously existing APM model assigns power management control to the BIOS, with limited intervention from the OS. In ACPI, the BIOS is responsible for the dirty details of communicating with hardware equipment but the control is in the OS.

The other important feature of ACPI is in bringing power management features previously only available in portable computers to desktop computers and servers. Extremely low consumption states, i.e. in which only memory, or not even memory is powered, but from which ordinary interrupts (real time clock, keyboard, modem, etc.) can quickly wake the system, are today available in portables only. The standard should therefore make these features available for a wider range of systems.

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Johnny Brove
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#2 : 2006-4-28 11:50 AM 全部回覆	送花 (1) 送出中...

System Management BIOS (SMBIOS) is a specification to lay out data structures (and access methods) in a BIOS which allows a user or application to store and retrieve information specifically about the PC in question. Circa 1999, it became part of the domain of the Distributed Management Task Force (DMTF). Before this integration, SMBIOS had been known as the Desktop Management Interface (DMI). At approximately the same time Microsoft required OEMs and BIOS vendors to support the interface/data set in order to have Microsoft certification.

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Johnny Brove
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#3 : 2006-4-28 11:51 AM 全部回覆	送花 (0) 送出中...

The Desktop Management Interface (DMI) generates a standard framework for managing and tracking components in a desktop, notebook or server computer. Essentially, to the user, it is a table provided by the Personal computer BIOS which can be parsed and which gives information about the BIOS and the System in a standardized way. Previously, such complete information was not available from a standardized source in the PC.

DMI is a part of the System Management BIOS (SMBIOS) specification. SMBIOS has been created to lay out data structures (and access methods) in a BIOS which allows a user or application to store and retrieve information specifically about the PC in question.

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