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World data communications as seen by the Data Processing Systems designer

Developments of national and international communication served Data Processing Systems is dependent upon not only the availability of facilities, but on the economics involved. The paper shows in graphic form the differences in the tariff structures in the countries and also a comparison of break-even costs when it is economically justified to lease telegraph or telephone lines versus utilizing the telex or the telephone switched facility.
 There will also be a comparison of available facilities by country, leased point-to-point, leased multipoint, switched telephone and telex. Included in this paper will be a comparison of attachment policies and a summary status of the remote computing services.