The role and place of the machine in scientific and technical information is explored including: basic trends in the development of information retrieval systems; preparation of engineering and scientific cadres with respect to mechanization and automation of information works; the logic of descriptor retrieval systems; the 'SETKA-3' automated information processing system (IPS) on the 'MINSK-22' with the use of the socket associative-address method of organization of information; experience in creating information retrieval language via computer technology; realization of thematic information retrieval systems on an electronic digital computer; certain questions of machine preparation of indexes for current and retrospective retrieval of scientific and technical information materials; mechanized IPS for a varied fund developed and introduced by the Upper-Volga Tsbti; questions of development of an information retrieval system for automated control of the work of a naval fleet of steam navigation and experimental investigations of comparative effectiveness of manual and mechanized IPS in the N.K. Krupskaya Leningrad State Institute of Culture. (Author/NH)