Introduction to Operating System, objective and function, system components system services, System structure, batch interactive, time-sharing and real time operating system, Protection, The introduction of window NT, DOS, Window 07, UNIX, Linux (Red hat).

Concurrent Process, Process concepts, principal of concurrency, the producer consumer problem, the critical section problem, semaphore, classical problem in concurrency, inter process communication, process generation, process scheduling.

CPU Scheduling, scheduling concepts, performance criteria scheduling algorithms, Algorithm evaluation, multiprocessor scheduling, I/O management and Disk scheduling, I/O devices and organization of the I/O functions, I/O buffering disk, I/O operating system, design issues.

Dead Locks system models, deadlock characterization, prevention, avoidance and detection recovery from deadlock, combined approach.

Memory Management, Base machine, Residence monitor, multiprogramming with fixed partition, multiprogramming with variable partitions, multiple base register, paging, segmentation, paging segmentation, virtual memory concepts, demand paging performance, page replacement algorithms, allocation of frames, thrashing, cache memory organization impact on performance.