#FIFO

Queues

Introduction A queue is a linear data structure that follows the First-In-First-Out (FIFO) principle. Think of it like a line at a coffee shop: the first person to join the line is the first person to be served. This fair ordering makes queues perfect for managing tasks, requests, and data that needs to be processed in the order it arrives. Queues are everywhere in computing—from managing print jobs and handling network requests to implementing breadth-first search algorithms. Read more →

November 19, 2025