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
The Online Journal of Current Clinical Trials are seeking the missing content, which they hope may be in researchers' personal hardcopy archives. The journal was accessible with an online subscription, initially costing $110USD per year via CompuServe and OCLC Net, using either GUI software called Guidon that used SGML and ran on DOS on an IBM-compatible computer or the Electronic Publishing Service, a more limited ASCII format also available on the internet. The system requirements were high for the time: an Intel 286 with 2 MB memory running Windows 3.0. By 1995, three more journals were available via Guidon on the Electronic Journals Online platform: The Online