FIFO (First In, First Out) Principle

FIFO (First In, First Out) is a data management principle where the first item added is the first one removed. This is commonly used in queues, ensuring elements are processed in the order they arrive.


Real-World Examples of FIFO:

  • Waiting lines – The first person in line is served first.
  • Print queues – Documents print in the order they were sent.
  • Task scheduling – CPU executes tasks in arrival order.

Key Characteristics of FIFO:
  • Preserves Order – First item in is the first one out.
  • Used in Queues – Manages tasks, processes, and requests.
  • Efficient Processing – Ensures fair execution in scheduling systems.

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