Internet of things different from one device to the next but there are basic characteristics shared by most. IoT creates opportunities for more direct integration of the physical world into computer-based systems, resulting in efficiency improvements, economic benefits, and reduced human exertions. The number of IoT devices increased 31% year-over-year to 8.4 billion in the year 2017 and it is estimated that there will be 30 billion devices by 2020. The global market value of IoT is projected to reach $7.1 trillion by 2020. Ambient intelligence and autonomous control are not part of the original concept of the Internet of things. Ambient intelligence
Madrid bid for the 2020 Summer Olympics the Spanish economy, which is expected to start recovering by the last quarter of 2013, and was predicted to grow over the following five years. The 2020 IOC Evaluation Commission Report on the Candidate Cities for the 2020 Summer Olympics was released on June 25. Madrid 2020 gave a presentation of their bid to the IOC at an Extraordinary session in Lausanne in July 2013. In July 2013, the bid launched their "Illuminate the Future" slogan. Prior to the host city election, FC Barcelona's Lionel Messi pledged his support for Madrid's bid for the 2020 Summer Olympics. At the 125th