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The History of Datacom/DB
October-December 2009 (vol. 31 no. 4)
pp. 87-91

In the 40 years since its inception, Datacom/DB has been one of the most powerful and reliable database management systems available. It is still an industry-leading DBMS for the IBM mainframe environment, used by more than 1,000 mainframe sites around the world. A brief history of Datacom/DB reveals the various companies that have owned it, its evolution, and its companion products.

1. , When Insyte Datacom was sold to ADR in 1978, the user conferences continued and were renamed Cadre (Complete ADR Environment). In a sense, Cadre or its logical predecessor has been in existence since 1974.
2. Originally IDEAL, the initial cap name "Ideal" didn't come along until sometime after Computer Associates' acquisition of ADR.

Index Terms:
DBMS, relational, ADR, CIM, CA, inverted list, performance, Insyte
Orrin Stevens, "The History of Datacom/DB," IEEE Annals of the History of Computing, vol. 31, no. 4, pp. 87-91, Oct.-Dec. 2009, doi:10.1109/MAHC.2009.108
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