Deadlock and its necessary conditions in OS

Deadlock is a situation where a set of processes are blocked because each process is holding a resource and waiting for another resource acquired by some other process. Deadlock can arise if following four conditions hold simultaneously (Necessary Conditions) Mutual Exclusion: One or more than one resource are non-sharable (Only one process can use at a time) Hold and Wait: A process is holding at least one resource and waiting for resources. No Preemption: A resource cannot be taken from a process unless the process releases the resource. Circular Wait: A set of processes are waiting for each other in circular form. Operating system Lecture notes are available at https://www.prudentac.com/operating-s...