Are PCI slots obsolete?

Related questions

1. What is PCI slot in motherboard?
2. How many PCI Express slots do I have?
3. How many PCI slots does a motherboard have?
4. What does PCI x16 mean?
5. Does my laptop have PCI Express slot?
6. What is the purpose of AGP slot?
7. What is PCI slot in computer?
8. Does RAM go into PCI slots?
9. How many PCIe slots do I have?
10. Does my computer have a PCIe slot?

Tags

1. #obsolete
2. #produce
3. #compatibility
4. #still
5. #purposes
6. #common
7. #desktops
8. #backwards
9. #modern
10. #relative
11. #however
12. #become