Deadlock

1. No Preemption

1.1. process

1.1.1. allocation

1.1.1.1. condition deadlocks

1.1.1.1.1. possible

2. Circular Wait

2.1. require

2.1.1. processes

2.1.1.1. request resources

2.1.1.1.1. only in

3. Mutual Exclusion

3.1. Resources

3.1.1. read-only files

3.1.1.1. do not lead

3.1.1.1.1. deadlock but resources

4. Hold and wait

4.1. prevented

4.1.1. holding

4.1.1.1. one or more resources

4.1.1.1.1. simultaneously

5. definition

5.1. avoided

5.1.1. four

5.1.1.1. conditions