This volume contains selected papers from the symposium "NewResults and NewTrends in Computer Science" held in Graz,Austria, June 20-21, 1991. The symposium was organized togive a wide-ranging overview of new work in the field on theoccasion of the fiftieth birthday of the editor of thevolume.Topics covered include: information on neural nets, ideas ona new paradigm for informatics, hypermedia systems andapplications, axioms for concurrent processes, techniquesfor image generation and compression, the role of datavisualization, object-oriented programming andgraphics,algorithms for layout compaction, new methods in databasesystems, the future of data networks, object-orientedartificial intelligence, problems in data structures andsorting, aspects of user interfaces, a theory of structures,applications of cryptography, evaluation of Ada, results inalgorithmic geometry, remarks on the history of computers,and a novel interpretation of machine learning.In total, the 26 high-level contributions authored byprominent experts from all over the world give anup-to-date survey of almost all subfields of computerscience. The book is written in a style which is easy tofollow, and it is of interest for any computer scientist, beit in research, teaching or practice.