BIOS (OCR A-Level Computer Science): Flashcards
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Practise the cards
14 cards from this deck
BIOS acronym meaning
BIOS acronym meaning
Basic Input/Output System
BIOS storage location
BIOS storage location
On a chip on the motherboard
POST acronym meaning
POST acronym meaning
Power-On Self-Test
Purpose of POST
Purpose of POST
Tests hardware components to ensure they work correctly
CMOS acronym meaning
CMOS acronym meaning
Complementary Metal-Oxide-Semiconductor
Data stored in CMOS
Data stored in CMOS
System settings: boot order, date, time, system clock
How CMOS retains settings when PC is off
How CMOS retains settings when PC is off
Powered by a battery
Boot loader function
Boot loader function
Loads the operating system into memory
5 steps of BIOS during startup
5 steps of BIOS during startup
Power-On→POST→Load CMOS→Identify Boot→Hand to Boot Loader
UEFI acronym meaning
UEFI acronym meaning
Unified Extensible Firmware Interface
UEFI drive size support advantage
UEFI drive size support advantage
Supports larger drives (over 2TB)
UEFI boot speed compared to BIOS
UEFI boot speed compared to BIOS
Faster
When BIOS role ends
When BIOS role ends
Once OS is loaded and takes over
Where BIOS settings are stored
Where BIOS settings are stored
In CMOS, not the BIOS chip itself