🚀 Queue in DSA – Introduction, Operations, Types, Applications & Programs (Complete Beginner Guide) Previous Blog in This Series 👉 Stack in DSA – Introduction, Operations, Applications & Programs Next Blog in This Series 👉 Linked List in DSA – Introduction, Types & Programs 📘 Introduction After learning Stack, the next important topic in Data Structures & Algorithms (DSA) is the Queue . A Queue is one of the most fundamental linear data structures used in programming. It follows a special rule called: FIFO First In, First Out This means the first element inserted is the first element removed. Real-life examples include: Ticket counter line ATM queue Printer queue CPU task scheduling Call center systems Customer service systems Message queues in applications In this complete beginner guide, we will learn: ✔ What is Queue ✔ Why Queue is Needed ✔ FIFO Principle ✔ Basic Operations (Enqueue, Dequeue, Peek, Display) ✔ Types of Queue ✔ Queue Representation ✔ Queue us...