The evolution of IoT can be traced back to the 1980s, but it gained momentum in the late 1990s and early 2000s.IoT 1.0 focused on connecting basic devices, but faced challenges with slow internet speeds, high costs, and lack of standardization.IoT 2.0 emphasized scalability and interoperability, with the rise of cloud computing and improved data storage and processing.IoT 3.0 introduced edge computing and faster networks, reducing latency and improving efficiency.