BIOS AND UEFI Flashcards
the firmware designed to replace BIOS is called
Unified Extensible Firmware Interface (UEFI)
BIOS firmware uses this type of memory
read-only memory chip (ROM)
the process of updating firmware is
flashing
the chip designed to replace the 3CMOS chip is
electrically erasable programable read-only memory (EEPROM)
a legacy computer chip that stores important system information related to the starting a computer
Complementary Metal-Oxide Semiconductor (CMOS)
the software used to check the BIOS chip, test CMOS RAM, start the CPU, and check all hardware devices is called
POST
POST software stored on
BIOS ROM
this allows a lost computer to contact an agent in the event that the computer is lost/stole
lojack
It allows a computer to recognize any device that is plugged into any of its ports, and automatically look for a compatible driver.
plug and play (PnP)
UEFI supports drives larger than
2.2 TB
the POST process consist of the following
verifies the BIOS code
loads the video card
loads the BIOS program
Tests system devices
the type of data found in CMOS includes
hard disk info
boot sequence
and hardware configurations
if the system fails to boot and sounds a beep code, this could indicate
no memory is installed or memory was not detected.
if the system boots, but the monitor remains blank, this could indicate
unsupported memory modules
if the system boots, but the memory count is incorrect, this could indicate
POST failed to recognize all of the memory.
