File Allocation Strategies

Interactive simulations to understand different file allocation methods

About File Allocation Strategies

File allocation strategies determine how files are stored on disk storage devices. Each method has its own advantages and disadvantages in terms of storage efficiency, access time, and fragmentation. Explore the interactive simulations below to understand how each allocation method works in practice.

Choose a Simulation

Continuous Allocation

Files are stored in contiguous blocks on the disk. This method provides fast access but can lead to external fragmentation.

  • Fast sequential access
  • Simple implementation
  • Visual block allocation
  • Fragmentation analysis
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Linked Allocation

Files are stored as linked lists of blocks. Each block contains a pointer to the next block in the file.

  • No external fragmentation
  • Dynamic file growth
  • Pointer visualization
  • Block linking demo
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Indexed Allocation

Files use an index block that contains pointers to all data blocks. Provides direct access to any block.

  • Direct block access
  • No external fragmentation
  • Index block visualization
  • Pointer highlighting
Start Simulation

Simulation Features

  • Interactive file creation and deletion
  • Real-time memory visualization
  • Directory table updates
  • Fragmentation analysis
  • Block-by-block allocation tracking
  • Error handling and validation
  • Print and reset functionality
  • Detailed tooltips and help