PS4 backwards compatibility: Can You Play PS1, PS2, and PS3 Games on PS4?
Can you play PS3 games on PS4? PlayStation 4 backwards compatibility explained
Sony PS4 vs PS3 | Trusted Reviews
Do PS4 Controllers Work on PS3? How to Connect a PS4 Controller to PS3
Sony PS4 vs PS3 | Trusted Reviews
Sony PS4 vs PS3 | Trusted Reviews
PS4 backwards compatibility: Can You Play PS1, PS2, and PS3 Games on PS4?
Sony releases PS4 v1.72 and PS3 v4.60 software updates
History Of PlayStation: PS1, PS2, PS3, PS4, PS5 - Launch Prices, Specs, Games - PlayStation Universe
PS5 console design evolution: Is the PlayStation 5 design the best yet from Sony? History of PlayStation console designs, from the PS1 to the PS5 via PS2, PS3 and PS4 - Stealth Optional
PS1, PS2, PS3, PS4, PS5 Size Comparison In Pictures - PlayStation Universe