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S vuasus, , UNIT —1 :, , Introduction, What is an Operating System, Simple Batch Systems, Multi-pro, Batch Systems, Time-Sharing Systems, Personal-Computer Systems, Paral :, Distributed Systems, Real-Time Systems. e, , , , , , , , , , , , , , , , , , , , , Memory Management : Background, Logical Versus Physical Address Spac, Contiguous Allocation, Paging, Segmentation., , Virtual Memory : Demand Paging, Page Replacement, Page-replacement Algo, Performance of Demand Paging, Allocation of Frames, Thrashing, Other Considerations., , UNIT-II, Processes : Process Concept, Process Scheduling, Operation on Processes., CPU Scheduling : Basic Concepts, Scheduling Criteria, Scheduling Algorithms,, , Processor Scheduling., , Process Synchronization : Background, The Critical, , ~Section Problem, Synchron, Hardware, Semaphores, Classical Problems of Synchronization. “y, , UNIT-II “OA, Deadlocks : System Model, Deadlock Characterization, Methods for Handling Dea, Deadlock Prevention, Deadlock Avoidance, Deadlock Detection, Recovery from Deadlock., , UNIT -IV, , Device Management : Techniques f, Devices, Virtual Devices; Input or Outp, Storage Structure : Disk Structure, Disk Scheduling, Disk Ma’, , Management, Disk Reliability., UNIT-V, , Information Management : Introduction, A Simple File System, General |, System, Symbolic File System, Basic File System, Access Control Verification, System, Physical File System File — System Interface; File Concept, |, Directory Structure, Protection, Consistency Semantics File - System IMP, System Structure, Allocation Methods, Free-Space Management. ‘, , ‘or Device Management, Dedicated Devic, ut Devices, Storage Devices, Buffering,, nagement, SW