What is the difference between UEFI and Legacy boot mode?

Related questions

1. Is PXE boot secure?
2. What happens if I reset BIOS to default?
3. What is UEFI and legacy boot mode?
4. What is ohci?
5. Does PXE use bootp?
6. How does a PXE boot work?
7. What does USB controller do?
8. Does resetting BIOS delete files?
9. What is USB legacy emulation?
10. What is USB Universal Host Controller?

Tags

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5. #loading
6. #table
7. #interface
8. #partition
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12. #whereas
13. #partitioning
14. #unified
15. #prevent
16. #below
17. #firmware
18. #record
19. #which
20. #extensible
21. #scheme
22. #master