What is AI? and what are the job roles coming with it?

Artificial Intelligence is making headlines almost every single day. Be it Robots serving food to COVID-19 patients or the drones used for aerial surveillance, AI is not ready to leave its center stage. And it won't cede the spotlight anytime soon. We can very well say that'there's virtually no major industry or organization left which is not using AI. Someway or other, they implement data-trained models of AI to effectively perform functions that often falls into the categories of machine learning or deep learning.