Operating Systems OS PCCST403 Semester 4 BTech KTU CS 2024 Scheme

 About Me Dr Binu V P

Scheme and Syllabus

Model Question Paper - KTU BTech PCCST403 OS Operating System 2024 Scheme and Answer Key

University Question Paper KTU BTech -PCCST403 Operating System April 2026 and Answer Scheme

Module-1 Introduction and CPU Scheduling

Linux Versus Classic Unix Kernels





How MLFQ Approximates Shortest Job First (SJF)Problems With the Basic MLFQ Scheduler

Case Study: Linux Completely Fair Scheduler (CFS)

Module-2 Concurrency and Synchronization Tools

Mutex Locks (Mutual Exclusion Locks)Sleeping Instead of Spinning: Queue-Based Locks

The Dining Philosophers Problem

Deadlock Characterization-Necessary Conditions for Deadlock

Case study
    Linux Kernel Synchronization
        Atomic operations
        Spin Locks
        Semaphores
        Mutexes

Module-3 Memory Management



Complete Control Flow of Memory Access

Page Replacement  Policies
    Introduction-Beyond Physical Memory: Page Replacement Policies

Module-4  I/O and File Management 

I/O Management 

Methods of Device Interaction (OS ↔ I/O Devices)

Disk Scheduling

SCAN Disk Scheduling (Elevator Algorithm)LOOK Disk SchedulingSSTF Disk Scheduling (Shortest Seek Time First)

Files and Directories

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