Analog computing is one of the main pillars of Unconventional Computing. Almost forgotten for decades, we now see an ever-increasing interest in electronic analog computing because it offers a path to high-performance and highly energy-efficient computing. These characteristics are of great importance in a world where vast amounts of electric energy are consumed by todays computer systems. Analog computing can deliver efficient solutions to many computing problems, ranging from general purpose analog computation to specialised systems like analog artificial neural networks. The book Analog Computing has established itself over the past decade as the standard textbook on the subject and has been substantially extended in this second edition, which includes more than 300 additional bibliographical entries, and has been expanded in many areas to include much greater detail. These enhancements will confirm this books status as the leading work in the field. It covers the history of analog computing from the Antikythera Mechanism to recent electronic analog computers and uses a wide variety of worked examples to provide a comprehensive introduction to programming analog computers. It also describes hybrid computers, digital differential analysers, the simulation of analog computers, stochastic computers, and provides a comprehensive treatment of classic and current analog computer applications. The last chapter looks into the promising future of analog computing.

Prof. Dr. Bernd Ulmann Professor for business informatics, Hochschule fur Oekonomie und Management (FOM), Standort Frankfurt/Main. 1995 - 1999: IT consultant, freelancer, working mainly in process automation in the petro chemical industry 1999 2005/2008 today: Founder and CEO of Raven Information Technologies GmbH 2005 2007: IT specialist, Landesbank RheinlandPfalz, Mainz 2007 2008: Group manager, Landesbank RheinlandPfalz, Mainz September 2009 - 14.04.2010: Lecturer for business informatics at Hochschule fur Oekonomie und Management (FOM), Standort Frankfurt/Main. ¨ Since 15.04.2010: Professor for business informatics, Hochschule fur Oeko- ¨ nomie und Management (FOM), Standort Frankfurt/Main. Since 2019: Guest professor and lecturer at the Institute of Medical Systems Biology at Ulm University. 2020: Founder and Analog Evanglist at anabrid (https://anabrid.com).