Chat but not in CC?

I am wondering is there a way to send messages from Inside a Computer terminal into the normal Minecraft chat?

No, such things should be hardcoded, you should suggest it in suggestions forum.

You could probably make a peripheral to do read and write chat messages. I have a feeling it would be a bad idea, though…

Mainly i wanted this for an alarm/warning system, kinda like If the rs power from right is ON /m riddla someone is at the front door, or something of the like.

i created a bukkit plugin for that but u need php for it to work because it uses the web api to connect to a php page which sends a socket message to the plugin https://github.com/Kolpa/Bukkit hers the plugin the download is under downloads and i gotta create the php page again