IT Learning Made Simple

Aug 10, 2026 · Fundamentals

Scheduling Algorithms Explained: What the Cafeteria Lady Teaches About First‑Come‑First‑Serve

The article uses a cafeteria line analogy to introduce CPU scheduling, then systematically explains FCFS, SJF, Round Robin, priority scheduling, and multilevel feedback queues, highlighting their mechanisms, advantages, drawbacks, and real‑world implementations in Windows, Linux, and macOS/iOS.