CONTENTS

UNIT – I

• Introduction
  • Views
  • Components of Computer
  • Types of System
  • OS Structure
  • Operations
• Services
  • Interface
  • System Calls
  • System Structure
  • System Design and Implementation.
• Process Management
  • Process
  • Process Scheduling
  • Inter-process Communication.
• CPU Scheduling:
  • CPU Schedulers
  • Scheduling Criteria
  • Scheduling Algorithms.
    • First-Come, First-Served Scheduling 
    • Shortest Job First
    • Round Robin
    • Priority Scheduling
  • Multilevel Queue Scheduling and Multilevel Feedback Queue

UNIT II

• Process Synchronization
• Critical- Section Problem
• Synchronization Hardware
• Semaphores
• Classical Problems of Synchronization
• Monitors.
• Deadlocks
• Characterization
• Methods for Handling Deadlocks
• Deadlock Prevention
• Deadlock Avoidance
  • Resource-Allocation-Graph Algorithm
• Deadlock Detection
• Deadlock Recovery.

UNIT III

Memory Management: Hardware – Address Binding – Address Space – Dynamic Loading and Linking –
Swapping – Contiguous Allocation – Segmentation – Paging – Structure of the Page Table.

UNIT IV

Virtual Memory Management: Demand Paging – Page Replacement Algorithms – Thrashing. File System:
File Concept -. Access Methods – Directory and Disk Structure – Protection – File System Structures –
Allocation Methods – Free Space Management.

UNIT V

• I/O Systems
  • I/O Hardware
    • Polling
    • Interrupts
    • Direct Memory Access
  • Application I/O Interface
  • Kernel I/O Subsystem
  • Transforming I/O Requests to Hardware Operations
  • Performance
• System Protection
  • Goals and Principles of Protection
  • Domain of Protection
  • Access matrix
• System Security
  • The Security Problem
  • Threats
    • System and Network Threats
  • Encryption
  • User Authentication.

QUESTION BANK

UNIT I

UNIT II

UNIT III

UNIT IV

UNIT V