First you need a program that prints whatever it receives as a rednet message: (assume the modem is on the top side of the computer)
rednet.open("top")
do while true
e, id, msg = os.pullEvent()
if e = "rednet_message" then
if msg == "TerminateConsolePlease" then
break
else
print(msg)
end
end
end
have that run on a computer next to a monitor by running it through the monitor program (Assume it's called screenwrite, and the monitor is on the computer's left side)
monitor left screenwrite.
And now, for the computer further away, have it run this: (assuming modem is on top again)
rednet.open("top")
do while true
input = read()
rednet.broadcast(input)
if input == "TerminateConsolePlease" then
break
end
end
That's probably the most basic way of doing it, but I'll leave you to explore the wiki and improve it as your programming skills get better. After all, no sense throwing you in the deep end.