In today’s digitally transformed world, technologies such as Artificial Intelligence (AI), the Internet of Things (IoT), and Machine Learning (ML) are reshaping industries, redefining lifestyles, and revolutionizing the way we engage with information and systems. These three technological pillars, while distinct in their conceptual foundations and functional applications, are increasingly interwoven to form the bedrock of intelligent, autonomous, and connected systems. Understanding their core principles, development, integration, and societal implications is essential for learners, professionals, and innovators navigating the Fourth Industrial Revolution.