BIOS and CMOS Flashcards
What does BIOS stand for ?
Basic Input/Output System
All motherboards need BIOS? True or false?
True
Where is the BIOS located?
On the motherboard
What does the BIOS do?
It is a small program which controls the communications between the operating system and the hardware
Is BIOS a RAM or ROM chip?
ROM Chip (Read Only Memory)
What else can BIOS identify?
What drives are available.
What drives are bootable.
How memory is configured and when it can be used.
How PCIe and PCI expansion slots are configured.
How SATA and USB ports are configured.
Motherboard power management features
Where will the motherboard manufacturer save BIOS settings?
In a CMOS Chip (Complementary Metal Oxide Semiconductor)
How does a BIOS know how to configure the hardware?
By reading the configured the settings stored in CMOS
If a computers time and date are incorrect what can be one of the possible problems?
The CMOS battery is bad or is getting low