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In IBM PC compatible computers, the main duties of POST are handled by the BIOS or UEFI, which may hand some of these duties to other programs designed to initialize very specific peripheral devices, notably for video and SCSI initialization.
UEFI applications can be developed and installed independently of the original equipment manufacturers (OEMs). A type of UEFI application is an OS boot loader such as GRUB, rEFInd, Gummiboot, and Windows Boot Manager, which loads some OS files into memory and executes them. Also, an OS boot loader can provide a user interface to allow the ...
A diagnostic program (also known as a test mode) is an automatic computer program sequence that determines the operational status within the software, hardware, or any combination thereof in a component, a system, or a network of systems.
Unified Extensible Firmware Interface (UEFI) is a successor to the legacy PC BIOS, ... [26] [27] This feature was intended for factory test or diagnostic purposes.
Starting August 28, 2014, HP ProLiant Gen9 series were available based on Intel Haswell chipset and DDR4 memory. [6] The first were the HP ProLiant ML350 Gen9 Server and HP ProLiant BL460c Gen9 Blade. Servers in this generation support both BIOS and UEFI. On November 1, 2015, HP split up into two separate companies, HP Inc., and HPE. As part of ...
Some laptop drives and "green power" desktop drives are programmed to unload the heads whenever there has not been any activity for a short period, to save power. [ 68 ] [ 69 ] Operating systems often access the file system a few times a minute in the background, [ 70 ] causing 100 or more load cycles per hour if the heads unload: the load ...
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