I am a student working on processing files at Terabyte scale in Supercomputers. AMA

So I am student in India and it is actually my first time to work on Supercomputer and hyper computer clusters. Its been only a month, but I have learned a lot. I am not so experienced, but this post might make me more experienced as I try to figure out the answers to your questions.
Just for context, I am actually working on processing specific format files with Python (yup slower) in a very large scale (in Terabyte scale).
Also as many of us might have thought in childhood atleast that supercomputers are computers with very large monitor or so, I thought there might be all other sorts of myths or curious questions about Supercomputers in the community, so here I am. AMA