MITX-6891 Mini-ITX Motherboard Based on Intel G45 Chipset64ACPIAdvanced Configuration and Power Management Interface for short.ACPI specificationsallow OS to control most power of computer and its extended devices. Windows 98/98SE,Windows 2000 and Windows ME are all support ACPI, it provide users a flexible system powermanagement.ATXAT extended, a motherboard layout according with modern standard replaced BabyAT. Itchanges disposal of many components, and do some new high efficiency design, so it is widelyused now.BIOSBasic in/out system.It’s a kind of software including all in/out control code interface in PC.It will do hardware testing while system booting, then system runs, it provides an interfacebetween OS and hardware. BIOS is stored in a ROM chip.BUSIn a computer system, it’s the channels among different parts for exchanging data; it’salso a group of hardware line. BUS here means part lines inside CPU and main components ofmemory.ChipsetIntegrated chips for executing one or more function.Here “Chipset” means system levelchipset structured by Southbridge & Northbridge; it decides motherboard’s structure and mainfunctions.CMOSComplementary Metal-Oxide Semiconductor, a widely used semiconductor with thecharacteristic of high speed but low power. CMOS we mention here means part of obligatespace in on-board CMOS RAM, for saving date, time, system information and systemparameter etc.