What are Deadlocks in DBMS ??

Hey readers !!, I have written this article on Google Doc. So please read from the below url and comment if you find anything interesting. https://docs.google.com/document/d/1T3rYVppnMHCLcsuBHNTR8gG1FGnsZKgxsJyEERx_Ckc/edit?usp=sharing