Where do I copy my program onto the Console?

Hi, I am new to ComputerCraft and just made a simple program that locks my computer,
but now some of my friends want to use it too. So I copied it to a floppy, and went to their house. I used CP, but it said something "File not Found" I know I can't copy it to the rom because it's read only memory. And when I do Fs.copy it says program not found.
I have searched with Google and tried it with own computer not my friends but I don't get the results I am looking for…
I am really confused and could use any help, thank you!

Wrong place to post. You want the Ask a Pro section.

Okay thanks, thought I put it here lol