This might be a very trivial question but as a beginner, I don't know the answer. I was exploring
? and after running a cell containing
?@, I got an interesting result:
However, I'm not sure about its exact interpretation. The answer contains two parts, a
Global` part that shows the list of all the global variables that I have defined (or were created as a result of my code). But what is the
System` part, and what does
?@do to get them?