Further results on generalised communicating P systems

In this paper we consider four restricted cases of the generalised communicating P systems and study their computational power, by providing improved results, with respect to the number of compartments involved. We illustrate the expressive power of these devices by modelling several problems, such as producer/consumer, workflow patterns, broadcasting problem and comparative operations. We also present some relationships between generalised communicating P systems and P colonies, tissue-like P systems with very simple components.