[Question] Printing and updating multiple color states simultaneously

Ok so I'm working on a light control system to control sets of lights using bundled cable using two computers with wireless modems. One computer acts as a remote controller telling the other to turn on/off certain lights and the other turns off/on the redstone signals. What I want to do is have the computer turning redstones signals on and off(not the remote) to show the state of each of the lighting sets connected to the bundled cable as I change them something like this:

__________________________
| |Lights|
| Red is off
| Green is on
| Yellow is off
|
|_________________________

I wasn't sure what to search for on this so sorry if this has already been answered.

Is this your first program? if so I would recommend you to take a step at a time, start by for example making a program where you input 'on' or 'off' and it will turn on or off the redstone at the back of the computer