21CTO

Jul 1, 2021 · Fundamentals

What Is the Internet of Things? Core Concepts and Key Protocols Explained

This article introduces the fundamentals of the Internet of Things, explaining what IoT is, its distinguishing characteristics, its relationship with artificial intelligence, current market trends, and a detailed overview of common IoT communication protocols such as MQTT, CoAP, LwM2M, HTTP, LoRaWAN, and NB‑IoT.