Rôle of Digital Computers in Exploration Seismology

Asynchronous Signals in Digital Computers

The History of Digital Computers

This account describes the history of the development of digital computers, from the work of Charles Babbage to the earliest electronic stored program computers, It has been prepared for Volume 3 of " l'Histoire Générale des Techniques, " and is in the main based on the introductory text written by the author for the book " The Origins of Digital Computers: Selected Papers " (Springer Verlag, 1...

Performance of Digital Neuro-computers

This paper deals with performance measurement and evaluation of digital neuro-computers. We discuss the constraints introduced by hardware implementations. A revisited deenition of computer speed-up is then proposed, taking into account both the traditional notion of parallelization speed-up and the algorithmic precision of the machines. Finally we show, on the example of the Kohonen feature ma...

Systems Simulation with Digital Computers

A machine-independent examination of the associated programming problem i s conducted and illustrated by means of a n example. Finally, the nature and application of simulation languages are noted. By system, we have in mind the meaning accorded by Webster, " a set of objects united by some form of regular interaction or interdependence. " Change in a system is regarded as change in the propert...

Digital electronic computers in biomedical science.

Occurrence of 8-Aminoisobutyric Acid in Mytilus edulis: J. Awapara and K. Allen ... 1250 Parasitic Relationship between Two Culturally Isolated and Unrelated Lichen Components: V. Ahmadjian and E. Henriksson ............................ 1251 Another Meteorite Cratcr Studied: H. H. Nininger ...... ....................... 1251 Effect of Chlorine Dioxide on Lignin Content and Cellulose Digestibili...