what exactly is about AWS , SERVICENOW . what is this all about. ?

how exactly are these useful in my career told something low coding and no coding platform. if anyone had any idea , could u please share it with me. basically i am an ece stdudent , local tier-3 clg lo ece core placements meeda poortiga nammakam pettukokunda , atleast safe side ki e certifications chestey manchidi ani anukuntunnaaa, antey saoftware side povadaniki. but don't know what exactly they are.. it will be really helpful if u guys can share your thoughts...