A Survey of Electronic Analog Computer Installations

A survey has been made of real-time electronic analog computer (differential analyzer) installations. This survey was conducted (1) so that a directory of the installations could be compiled and (2) so that various data regarding the installations could be made available for analysis. The survey was conducted by a mail questionnaire. Information was obtained regarding size of installation, size of staff, weekly usage of the equipment, age of installation, and availability to outside organizations from 96 installations havig a total of 8,320 computer amplifiers. The results of the survey have been analyzed and are presented in this paper, together with the directory.