Description Using CPU - OS simulator, Execute the following code and show the following 1. Occurrence of Deadlocks [2.5] 2. Recovering deadlock using resource release and remove process method [2.5] 3. Prevent deadlock using disallow hold and wait, disallow circular wait and total ordering [5] program P1 resource(1, allocate) wait(3) resource(2, allocate) for n=1 to 20 next end program P2 resource(2, allocate) wait(3) resource(3, allocate) for n=1 to 20 next end program P3 resource(3, allocate) wait(3) resource(4, allocate) for n=1 to 20 next end program P4 resource(4, allocate) wait(3) resource(1, allocate) for n=1 to 20 next end