Automating Authorization: BASE

  • David L. StearnsEmail author
Part of the History of Computing book series (HC)


This chapter describes the creation of NBI’s first electronic authorization system, known as BASE. It recounts the various ways that banks sought to automate local authorizations, how Omniswitch demonstrated that interchange authorizations could be switched between local centers, and the efforts to create a single shared national authorization system for all the different charge and credit cards. This effort was ultimately abandoned and I end by describing the design and construction of NBI’s own system, which went into production in April of 1973.


Digital Equipment Corporation Local Authorization Authorization Process Authorization System American Banker 
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Copyright information

© Springer-Verlag London Limited 2011

Authors and Affiliations

  1. 1.Seattle Pacific UniversitySeattleUSA

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