Answer Description
The BIOS (Basic Input Output System) firmware application will display information like the CPU, RAM and hard drive information. It is not necessary to have an operating system installed to utilize the BIOS.
Wikipedia
BIOS (, BY-oss, -ohss an acronym for Basic Input/Output System and also known as the System BIOS, ROM BIOS or PC BIOS) is firmware used to perform hardware initialization during the booting process (power-on startup), and to provide runtime services for operating systems and programs The BIOS firmware comes pre-installed on a personal computer's system board, and it is the first software to run when powered on The name originates from the Basic Input/Output System used in the CP/M operating system in 1975 The BIOS originally proprietary to the IBM PC has been reverse engineered by some companies (such as Phoenix Technologies) looking to create compatible systems
BIOS - Wikipedia, the free encyclopedia