ELI5: Explain Like I'm 5

ARexx

ARexx is a special computer language that helps different programs or apps talk to each other. It is short for "Amiga Rexx", because it was first created for the Amiga computer system.

Just like how you can use words to talk to your friends, programs also use words to talk to each other - this is called a "programming language". However, sometimes different programs speak different languages and cannot understand each other. This is where ARexx comes in: it acts like a translator and helps programs understand each other.

ARexx lets one program send a message or command to another program, and then receive a message back. This way, different programs can work together to do things like open documents in one program and then edit them in another.

It's like when you tell your friend to pass the ball and they pass it back to you - ARexx helps different programs pass information back and forth like that. It makes working with different programs much easier and more flexible.