Firmware

complementary metal-oxide semiconductor (CMOS)

A chip that retains system settings configured in the BIOS such as the time, keyboard settings, and boot sequence.

power-on self-test (POST)

A group of tests, stored in the BIOS and performed as a PC boots up, to check for the presence and function of system components.

beep codes

An audible alarm that occurs when a computer encounters an issue before a power-on self test (POST) has completed when booting. The number and frequency of the beeps can be used to compare information found in the motherboard manual and identify the issue.

Firmware

BIOS is stored in a nonvolatile media called____ Post routines are also built into it

services

Bios programs that enable hardware to function are called what?

motherboard

Bois programming enables interaction with the ____ before OS loads

real-time clock (RTC)

Device within the CMOS memory chip that provides date and time information to the computer and operating system.

CMOS battery

The battery on the motherboard used to power the CMOS chip when the computer is unplugged.

POST card

a test card installed in a slot on the motherboard that is used to help discover and report computer errors and conflicts that occur when a computer is first turned on and before the operating system is launched.

Basic Input/Output System (BIOS)

built-in program which initializes computer hardware and launches the operating system when the computer starts

Set user password

to prevent random people from booting the OS, a technician should do what?

flashing

updating all the firmware on the motherboard is referred to as what?

Unified Extensible Firmware Interface (UEFI)

An interface between firmware on the motherboard and the operating system and improves on legacy BIOS processes for booting, handing over the boot to the OS, and loading device drivers and applications before the OS loads.

self check

POST runs a boot, requesting devices to do what?

System Setup (CMOS)

This chip provides detailed information particular to your system and can be altered as your system changes. The BIOS uses this info to modify or supplement its programming as needed.

System Setup

This is the configurable aspect of the BIOS, enabling changes to the BIOS such as boot orders, to the system time.

Single Flash Rom Chips (Flash Memory)

Used to replace CMOS on BIOS. Allows a user to flash or update the BIOS.

power good wire

Used to wake up the CPU after the power supply has tested for proper voltage.

time slowing down,

What is an indication that your CMOS battery is dying

CR2032

What type of battery is used for the RTC and CMOS chip?

back up bios

most motherboards today have a _______ incase the bios stops working

power-on self-test (POST)

once the CPU gets enough voltage, the first thing it does is talks to the BIOS and runs the____