I saw that not all players understood how to program on the new terminals. I didn't get it at first either, but I see more potential in today's versions than in my beloved gTASM. Here's what I discovered.

1. First you need a Root Computer and no others (their operating systems won't let you create a *.lua file). You can still save the program on a floppy disk and transfer it to a regular computer.
   
2. Only the *.lua file will run. So let's create the first program:
   
   :f touch hello.lua
3. Enter this line:
   
   gTerminal:Broadcast(entity, “Hello World!”)
4. Run:
   
   :f exec hello.lua
   And that's it!

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As you realized, I am not a developer and found all the information with the help of gmad.exe and by looking at the source code of the addon. Maybe I'll post more findings later.