Clarify in some topics?

Global variables is generic term which we can create and use anywhere in the our process.

In Uipath mostly we keep global variables in two places. As mentioned by @shreyash_shirbhate we can keep global variables in config file as dictionary variable like file path and application url and we can access anywhere in our process and second place would be assests in orchestrator. Mostly assets are our app credentials. Once we create assests we can access these in our entire process by calling with get asset activity. I hope you got some info on this. Thanks.