Queue Visualizer - FIFO Data Structure
Interactive step-by-step visualization comparing linear queues (wasteful) vs circular queues (efficient) with real-world applications.[web:249][web:257]
Linear Queue Problem: Once elements are dequeued, front moves forward and space before it cannot be reused, even if rear reaches the end.[web:257][web:260]
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FIFO Principle

  • First In, First Out ordering
  • Enqueue: Add element at rear
  • Dequeue: Remove element from front
  • Models real-world waiting lines

Real Applications[web:253]

  • CPU & process scheduling
  • BFS graph/tree traversal
  • Print spooling & job queues
  • Network packet buffering