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Mithilesh Kumar Dubey, Lovely Professional University                            Unit 8: File Management




                                 Unit 8: File Management                                        Notes



             CONTENTS

             Objectives
             Introduction
             8.1  File Systems
                 8.1.1  Types of File Systems
                 8.1.2  File Systems and Operating Systems
             8.2  File Concept

             8.3  Access Methods
             8.4  Directory Structure
             8.5   File System Mounting
             8.6  File Sharing
             8.7  Protection
             8.8   File System Implementation
             8.9  Allocation Methods
                 8.9.1  Contiguous Allocation
                 8.9.2  Linked Allocation

                 8.9.3  Indexed Allocation
             8.10 Free-space Management
                 8.10.1 Bit-Vector
                 8.10.2 Linked List
                 8.10.3 Grouping
                 8.10.4 Counting
             8.11 Directory Implementation

             8.12 Summary
             8.13 Keywords
             8.14 Self Assessment
             8.15 Review Questions
             8.16 Further Readings

          Objectives

          After studying this unit, you will be able to:
               Defi ne fi le systems
               Explain access methods
               Know directory structure

               Describe file system implementation
               Explain allocation methods


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