Jet Propulsion Laboratory Display Information System: Difference between revisions

Revision as of 22:39, 21 December 2010

Revision as of 00:07, 22 December 2010

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{{Citations missing|date=December 2006}}

The '''Jet Propulsion Laboratory Display Information System''' (or '''JPLDIS''') is a file management program written in [[Fortran|FORTRAN]].

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In late 1980, George Tate, of [[Ashton-Tate]], entered into a marketing agreement with Wayne Ratliff. Vulcan was renamed to dBase, the price was raised from $50 to $695, and the software quickly became a huge success.

According to the http://www.foxprohistory.org/ site, JPLDIS was the reason why Ashton-Tate lost a lawsuit against FoxPro and SCO FoxPro over copyrights used by FoxPro that were claimed to belong to Ashton-Tate and the dBase product. In December 11, 1990, Judge Hatter issued an order invalidating Ashton-Tate's copyrights in its own dBASE products. <ref name="foxpro"/>

That ruling was based on a legal doctrine known as "unclean hands". Judge Hatter explained that Ashton-Tate knew that the dBase program development was based on JPLDIS, and that fact was kept hidden from the Copyright Office. <ref name="foxpro" />

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== References ==

{{Reflist|refs=

<ref name="foxpro">{{cite [web|title=The History of Fox Pro|work=Fox Pro|accessdate=December 21, 2010|url=http://www.foxprohistory.org/ashton_sues_fox.htm The History of FoxPro - Ashton-Tate vs Fox Software]|<!--archiveurl=http://www.webcitation.org/5v9ZFwblS|archivedate=21 December, 2010-->}}</ref>

<ref name="data based advisor">{{cite journal|last=Hawkins|first=John L.|year=1991|month=March|title=dSTORY; how I really developed dBASE. (author of dBASE tells of the database management system's history)|journal=Data Based Advisor|volume=9|issue=3|page=93|publisher=Advisor Publications, Inc.|issn=1090-6436|url=http://findwww.galegroupaccessmylibrary.com/gtxcoms2/infomark.do?&contentSet=IACsummary_0286-Documents&type=retrieve&tabID=T003&prodId=AONE&docId=A10480056&source=gale&srcprod=AONE&version=1.09229460_ITM|accessdate=21 December, 2010}}</ref>

<ref name="PC Week">{{cite journal|last=Moser|first=Karen D.|last2=Ould|first2=Andrew|year=1990|month=December 17|title=Court ruling turns table on A-T in dBASE battle. (Ashton-Tate's law suit against Fox Software Inc.)|journal=PC Week|volume=7|issue=50|page=1|publisher=Ziff Davis Enterprise|___location=New York, New York|issn=0740-1604|url=http://find.galegroup.com/gtx/infomark.do?&contentSet=IAC-Documents&type=retrieve&tabID=T003&prodId=AONE&docId=A9685703&source=gale&srcprod=AONE|accessdate=21 December, 2010}}</ref>

}}