UNIT I:
Architecture of distributed systems, issues in distributed os ,inherent limitation of distributed system, logical classs, global state, distributed- shared memory, implementation algorithm memory reference, design issues, distributed scheduling, load distributed algorithm.

UNIT II:
Failure recovery, classification of failures, basic approaches, check pair, fault-tolerance, commit protocols, voting protocols, concurrency controls, lock time safe ordering

UNIT III:
Windows NT overview-shutdown, objects manger and security, NT executive objects, managing objects, protecting objects – processes and thread – multithreading and multiprocessing, multithreading thread object synchronization, alerts and asynchronization procedure calls

UNIT-IV:
The virtual memory manager: sharing, protecting and virtual memory implementation - Thread scheduling and dispatching, interrupt and exception handling system service - dispatching, multi processor synchronization.

Text Book:
1. Custer Helen, inside windos nt, Microsoft press.
2. M.Singhal and H.G.Shivarathi, Advanced concepts in operating system