The article analyzes the current state of digital technologies that have a considerable impact on the technological and socio-economic development of industry, society, and the economy. The modern development of the industry in the model of the World Economic Forum (WEF) corresponds to the level of Industry 4.0, the development of society in the Japanese model is appropriate for the stage of Society 5.0, the development of the world economy, as the authors believe, refer to the stage of Economy 3.0. Various sets of technology, such as SMACT, DARQ, the digital technologies of the seventh wave, along with key technologies that have been emphasized by the companies IDC, Accenture, McKinsey, PwC and BCG, are considered. The reports of the US National Intelligence Council, WEF and UN are analyzed. Having studied lots of such documents, the authors proposed the following eight technologies to consider as key ones: Blockchain, Artificial Intelligence, Big Data, Internet of Things, Robots, 3D Printing, Extended Reality and Cloud Technology.

Keywords: SMACT, DARQ, Blockchain, Artificial Intelligence, Big Data, Internet of Things, Robots, 3D Printing, Extended Reality, Cloud Technology

Having appeared on fusion of two megatrends – urbanization and digital revolution – the smart city paradigm signifies transition to modern cities digital governance. The history of the origin and evolution of the smart city concept is shortly given with the role of high-tech giants and the world's largest international organizations in the process. The steps of the Russian Government, high-tech companies and an academic community, which contribute to the emergence of smart cities in Russia, have been presented. The IBM and The World Bank declare that smarter cities make their systems instrumented, interconnected or integrated and intelligent. These three ways to use of information and communications technology we have interpreted as a smart city model. According to the Smart Cities Council a smart city enhances its livability, workability and sustainability by collecting, communicating and “crunching” data. These three core functions of a smart city have been described here as the second model. Smart Cities Council Chairman Jesse Berst on the third-annual Smart Cities Week D.C. have presented four actions a smart city performs: it collects, communicates, computes and controls. We can consider now the process of improving decisions and behavior had been separated from “crunching” as a new stage. The KPMG sets the smart city principle: it operates on a 4-step process of capturing data, communicating, analyzing and acting. Although KPMG’s model appears earlier, we suggest the model presented by Jesse Berst to be considered as the basic smart city model. It emphasizes four substantial stages in the use of ICT in smart cities

Keywords: smart city, digital economy, sustainable development, digital technologies, urban management, smart city model, data, information

The Smart City concept, which appears at the confluence of two modern mega-trends of urbanization and digital revolution, essentially rests on digital technologies which allow managing processes of the city life. A smart city obtains data from various sources, derives information from them and converts the information to knowledge, which is used in decision making. The DIKW model shows, that it may be sensible to distinguish the notions of data, information, and knowledge. Black & Veatch company’s 3M model of a smart city is based on the concept of, «measuring, moving and managing» data. The model reflects fundamental stages of urban environment data handling. The paper points to three essential digital technologies, which play a significant part in implementation of ICT & Data infrastructure in a smart city. They are broadband networks, internet of things and big data

Keywords: DIKW model, information and communication technologies, smart city model, digital technologies, digital revolution, digital economy, broadband networks, internet of things, big data, SMAC

This paper describes the smart city definitions and expresses a view that smart city infrastructure consists of digital technologies and information and communication technologies. We make the point that the terms Urban Digitality, Urban Computing and Urban Informatics are used to describe smart city’s underlying digital technologies in English language scientific literature. The three-step American smart city model is analyzed. The model supposes a city to collect information about itself using sensors and other devices on the first stage. On the second stage collected data is transferred by means of wired and wireless networks to be analyzed on the third stage for better understanding of the present situation and what may happen in the future. Having found that the digital technologies of internet of things, social networks and mobility correspond to the stage of «Collect», so as the technology of cloud computing is brought into correlation with the stage of «Communicate» and, finally, that the digital technologies of big data and analytics are compared to the stage of «Crunch», we reveal the substance of smart city technological base.

Keywords: smart city, digital economy, crucial digital technologies, information and communication technologies, three-step smart city model, cloud computing, internet of things, social networks, mobility, big data

Smart cities development initiatives, which become the response on growing urbanization, rise the problem of smart city digital technologies study. Digital revolution grows stronger, so it makes possible to use digital information and communication technologies in city management and allows rise of life quality. The digital revolution modern stage is characterized by the technologies combination of the third digital platform which is briefly referred to as SMAC, on the first English letters of social networks, mobility, analytics and cloud computing. This paper describes IBM’s smart city model, which consists of three stages: instrumentation, interconnection and intelligence. Instrumentation means that the workings of the system are turned into data points and the system is made measurable. Interconnection means that different parts of a core system can interact with each other, turning data into information. Intelligence refers to the ability to use the created information in decision making processes. We declare that the third digital platform technologies having been correlated with the model stages could be considered as the digital technologies of a smart city.

Keywords: information and communication technologies, smart city, smart city model, digital economy, digital technologies, cloud computing, internet of things, social networks, mobility, big data