system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How would a programming language designed for a quantum computer work in comparison to a mundane one?
gpt
Computers, on the very lowest level at least, can only do very few calculations with 0 and 1 in binary.  
The most commonly used programming languages have nothing to do with how that works directly. When you write something in Java for example, you need to compile your code before the computer can actually run it. The compiler then turns the code into a different code that the computer can actually use.  
So it is not unreasonable to assume that there will be different compilers for quantum computers, that can convert the same code you wrote into code that a quantum computer can use.