How would I make my ScreeGuis interactive?

So, I am try to make a computer. I have built the computer itself, but I want to make the screen Guis actually do something. And I am nearly clueless on how to script ever since LuaLearners stopped.

Scripting Helpers is a place to help people fix broken scripts and/or help them out with it, just for future reference so you know.

You can learn about Screen Gui's at the Roblox Wiki, along with hundreds of other things, you should check it out.

Here you go:

http://wiki.roblox.com/index.php?title=Beginner%27s_GUI_Tutorial

Use input objects ("TextButton" or "ImageButton") for click inputs, use "ScrollingFrame" to have your frame scroll up or down.

TextButton Input Format

Function

function Click(--[[YourArgumentHere]])
	--[[YourStatementHere]]
end

script.Parent.TextButton.MouseButton1Click:connect(Click)

Anonymous Function

script.Parent.TextButton.MouseButton1Click:connect(function (--[[YourArgumentHere]])
	--[[YourStatementHere]]
end

Refer to here if you want to change your Events, edit their properties in-game, etc.

Refer to here if you want to learn more about how to manipulate GUIs.