A Appendix
A.1 BIOS
The basic input/output system (BIOS) is the most basic software loaded to a
computer hardware system. It provides an abstraction layer between the computer
hardware and the OS. It is used to perform hardware initialization during the boot
process and provide runtime services for the OS and programs. Figure A-1 shows
the BIOS position in the system.
The BIOS data is stored on the Serial Peripheral Interface (SPI)
ash memory. The
BIOS performs a power-on self-test (POST), initializes CPU and memory, checks
the I/O and boot device, and
nally boots the OS. The BIOS also supports the
advanced
conguration and power interface (ACPI) and hot swap setting.
HUAWEI Kunpeng 920 platform server is a patented BIOS product with
independent intellectual property rights. It supports customization and provides a
variety of in-band and out-of-band
conguration functions as well as high
scalability.
TaiShan 200 Server
User Guide (Model 2280) A Appendix
Issue 04 (2020-01-16) Copyright © Huawei Technologies Co., Ltd. 119
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