How to assign static IP address to devices on home network

Assign static IP addresses, so devices on your network can find each other.

[sfgiants]

Thank you! This was very helpful. Much appreciated.

[dso]

Thank you so much! Exactly what I wanted to know how to accomplish, Sir!

[CarAngTube]

@Rui Wang. Are there any negatives reasons in doing this?

Also what are the negative consequences in doing this to all of your home devices?