Which of the following are the principle duties performed by the BIOS during POST (power-on-self-test)? Each correct answer represents a part of the solution. Choose all that apply. 

Answer options:

A. It provides a user interface for system`s configuration.
B. It identifies, organizes, and selects boot devices.
C. It delegates control to other BIOS, if it is required.
D. It discovers size and verifies system memory.
E. It verifies the integrity of the BIOS code itself.
F. It interrupts the execution of all running programs.

a user interface for system`s configuration. It identifies, organizes, and selects boot devices. It executes the bootstrap program. Answer: F is incorrect. The BIOS

The principle duties performed by the BIOS during POST (power-on-self-test) are as follows: It verifies the integrity of the BIOS code itself. It discovers size and verifies system memory. It discovers, initializes, and catalogs all system hardware. It delegates control to other BIOS if it is required. It provides does not interrupt the execution of all running programs.