Increasing population in urban centers day by day demands for more services and infrastructure in order to meet all the needs of residents and visitors of the city. Due to the increased developments in advanced metering and digital technologies smart cities have been equipped with different electronic devices on the basis of Internet of Things (IOT), The utilization of all the technologies to achieve this objective presents an opportunity for the development of smart cities. This paper focus specifically to an urban IOT system and also to provide a comprehensive review on the concepts of smart cities, technologies of IOT and its applications
