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It is referred to as non-volatile memory or NVRAM because, after the system loses power, it does retain state by virtue of the CMOS battery. When the battery fails, BIOS settings are reset to their defaults. The battery can also be used to power a real time clock (RTC) and the RTC, NVRAM and battery may be integrated into a single component.
In computing, BIOS (/ ˈ b aɪ ɒ s,-oʊ s /, BY-oss, -ohss; Basic Input/Output System, also known as the System BIOS, ROM BIOS, BIOS ROM or PC BIOS) is a type of firmware used to provide runtime services for operating systems and programs and to perform hardware initialization during the booting process (power-on startup). [1]
Battery usage and battery saver are now on a "Battery" page in Settings, with extended features for managing individual apps. Windows Update now has an "Active hours" setting that prevents automatic restarts during the set time. "Active hours" is a continuous period of time, with a maximum length of 12 hours.
Motherboard firmware (including BIOS and UEFI) can be updated using USB flash drives. Usually, new firmware is downloaded and placed onto a FAT16- or FAT32-formatted USB flash drive connected to a system which is to be updated, and the path to the new firmware image is selected within the update component of system's firmware. [52]
The Calculator app running in Windows 8.1. A number of apps are included in the standard installation of Windows 8, including Mail (an email client), People (a contact manager), Calendar (a calendaring app), Messaging (an IM client), Photos (an image viewer), Music (an audio player), Video (a video player), Camera (a webcam or digital camera client), SkyDrive, Reader (an e-book reader), and ...
Field upgrade is the TCG term for updating the TPM firmware. The update can be between TPM 1.2 and TPM 2.0, or between firmware versions. Some vendors limit the number of transitions between 1.2 and 2.0, and some restrict rollback to previous versions. [citation needed] Platform OEMs such as HP [85] supply an upgrade tool.
Sleep mode has gone by various names, including Stand By, Suspend and Suspend to RAM.Machine state is held in RAM and, when placed in sleep mode, the computer cuts power to unneeded subsystems and places the RAM into a minimum power state, just sufficient to retain its data.
A downgrade may be desirable after an update breached compatibility and/or removed useful functionality. [17] Ability to control battery charging current, where a technically unnecessary throttling imposed by the operating system while the screen is on can be removed. On the other hand, a current reduction may be desired to extend battery lifespan.