variety of social problems including the aging of population and nursing care. The "Continuity" set of features, introduced by Apple in OS X Yosemite, can be seen as an example of ubiquitous computing. Issues Privacy is easily the most often-cited criticism of ubiquitous computing (ubicomp), and may be the greatest barrier to its long-term success. Research centres This is a list of notable institutions who claim to have a focus on Ubiquitous computing sorted by country: Canada Topological Media Lab, Concordia University, Canada Finland Community Imaging Group, University of Oulu, Finland Germany Telecooperation Office (TECO), Karlsruhe Institute of Technology, Germany India Ubiquitous Computing Research Resource Centre (UCRC), Centre for Development of Advanced Computing Pakistan Centre for Research in Ubiquitous Computing (CRUC), Karachi, Pakistan. Sweden Mobile Life Centre, Stockholm University United Kingdom Mixed Reality Lab, University of Nottingham See also Ambient media Computer accessibility Human-centered computing Mobile interaction Smart city (ubiquitous city) Ubiquitous commerce Ubiquitous learning Ubiquitous robot Wearable computer References Further reading Adam Greenfield's book Everyware: The Dawning Age of Ubiquitous Computing . John Tinnell's book Actionable Media: Digital Communication Beyond the Desktop Oxford University Press, 2018. Salim, Flora, Abowd, Gregory UbiComp-ISWC '20: Adjunct Proceedings of the 2020 ACM International Joint Conference on Pervasive and Ubiquitous Computing and Proceedings of the 2020 ACM International Symposium on Wearable Computers Association for Computing Machinery, New York, United States . External links International Conference on Pervasive Computing (Pervasive) Pervasive and Mobile Computing journal, PMC (Elsevier) Proceedings of the Semantic Ambient Media Workshop Series (iAMEA) University of Siegen, ubicomp home publications Artificial intelligence laboratories Human–computer interaction Ubiquitous computing research centers