UBIQUITOUS COMPUTING NEEDS UBIQUITOUS SOFTWARE - A General-Purpose Computation Model Topics: Pervasive Embedded Devices; Software Architectures; Software Simulation; Ubiquitous Computing Systems and Services; Ubiquitous Multimedia In Proceedings of the 1st International Conference on Pervasive and Embedded Computing and Communication Systems PECCS - Volume 1, 243-249, 2011 , Vilamoura, Algarve, Portugal