(Question making a computer pickup redstone current)

I wan my computer to do something when it recieves a redstone current.
So i was thinking of using an if but i dont know how exaclty?
So I want my computer when i pulse it with redstone to do something please help me with this script
Sasuke.

Use

os.pullEvent("redstone")

Then your computer will stop there, until it gets a redstone current. This will respond to a change in redstone current, though. If you know which side the redstone is, you can use

redstone.getInput("side") -- change side to the side where the redstone is

This will output true when it gets a redstone signal, and false when it doesn't get a redstone signal.

ooke thanx