One of the most highlighted features of the new PS5 is backward compatibility with older PlayStation consoles.
PS5 Backwards Compatibility for PS4, PS3, PS2, PS1, PSP
Can a PS5 Play PS3 and PS4 Games? Yes, Mostly
PS5 Backwards Compatibility: Can You Play PS3, PS2, and PS1 Games on PlayStation 5?
The PS5 Pro needs a real killer feature — like backward compatibility
PS5 Backwards Compatibility : r/playstation
Ubisoft says PS5 won't be backward compatible with PS3, PS2 or PS1 - CNET
Can You Play PS3 Games On PS5? - Student Beans Blog
Is The PS5 Backwards Compatible?
PS5: Backwards Compatibility Confirmed
PS5 Won't Be Backwards Compatible With PS3, PS2, or PS1 Games - IGN