Modem vs Hub vs Switch vs Router

 https://www.cctvcameraworld.com/connect-ip-camera-computer/

 

~~~~~   WIFI EXTENDER vs MESH WIFI   ~~~~~

~~~~~   TRI-BAND and MU-MIMO ROUTERS   ~~~~~

https://www.techtarget.com/searchnetworking/answer/What-is-the-difference-between-a-managed-and-unmanaged-switch#:~:text=What%20are%20unmanaged%20switches%3F,to%20the%20same%20broadcast%20domain.