PoE Switch VS. Ethernet Switch

This video talks about the difference between a PoE switch and an Ethernet switch. So many people might wonder the difference between these two, an Ethernet switch is a device just for basic data exchange, there is not much power needed, so we can easily power up with a 12V DC adaptor. A PoE switch will need to provide PoE signals, so there is a power supply built-in, so we directly connect it with our alternating current. PoE also has an easy plug-and-play feature, no configurations needed, an Ethernet switch might need some settings.

[SleepySuk]

What's the sound in the background at 2:49

[joepeeps]

Please clarify this for
Modem >>> Router >>> PoE Switch to (PoE Devices) >>> Ethernet Switch to (non- PoE Devices)
Is this a correct set up? I'm attempting to add security cameras to my system to run off the PoE

[priyankajayaraman]

Could you please clarify if a PoE switch can be classified as carrier ethernet switch?