BIOS
The basic input/output system (BIOS) is the most basic software loaded to a computer hardware system. The BIOS provides an abstraction layer for the operating system (OS) and the hardware to interact with the keyboard, display, and other input/output (I/O) devices.
The BIOS data is stored on the Serial Peripheral Interface (SPI) flash memory. The BIOS performs a power-on self-test (POST), initializes CPU and memory, checks the I/O and boot device, and finally boots the OS. The BIOS also provides the advanced configuration and power interface (ACPI) and hot swap.
The Huawei Purley-based server is developed based on Insyde code base and uses a proprietary BIOS. It provides a variety of in-band and out-of-band configuration functions as well as high scalability, and supports customization.
For details about the BIOS, see Huawei Atlas Server Purley Platform BIOS Parameter Reference.
