Programming languages and system architectures are at the frontiers of two different worlds. The conference on which this book is based was an adventure in a land where the two worlds - the formal world of algorithms and the physical world of electronic circuits - interact. The participants explored this land under the guidance of internationally renowned researchers such as Butler W. Lampson, Susan Graham, Jan L.A. van de Snepscheut, and C.A.R. Hoare,...