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Distributed data processing

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Distributed Data Processing (DDP)[1] was the term that IBM used for the IBM 8100 (1975) and its successor, the IBM 3790 (1979). Datamation described the 3790 in March 1979 as "less than successful."[2] [3]

DDP was used by IBM to refer to two environments:

Each pair included a Telecommunications Monitor and a Database system.[4] The layoring involved a message, containing information to form a transaction, which was then processed by an application program.[5]

Development tools such as Program Validation Services (PVS) were released by IBM to facilitate expansion.[6]

Use of "a number of small computers linked to a central computer"[1] permitted local[7] and central processing, each optimized at what it could best do. Terminals,[8] including those described as intelligent, typically were attached locally,[9] to a "satellite processor."[10] Central systems, sometimes multi-processors, grew to handle the load.[11] Some of this extra capacity, of necessity, is used to enhance data security.[12]

Lower case DDP

Hadoop[13] adds another term to the mix: File System.

Tools added for this use of ddp include new programming languages.

See also

References

  1. ^ a b "Northern Telecom's Setback". The New York Times. January 21, 1981.
  2. ^ Woods, Larry (March 1979). "IBM's 8100: First Impressions". Datamation.
  3. ^ "(which can simulate 3790 functions through the DPCX operating system)"
  4. ^ a b Ronald G. Ross. "IBM's Distributed Processing Capabilities For Large-Scale Data Base Systems, Part 1". Computerworld.
  5. ^ a b Ronald G. Ross. "IBM's Distributed Processing Capabilities For Large-Scale Data Base Systems, Part 2". Computerworld.
  6. ^ Ronald A. Frank (July 16, 1975). "The 3790: A Glimpse Into IBM's Future Plans?". Computerworld. Vol. 9, no. 29. IDG Enterprise. p. 15. ISSN 0010-4841.
  7. ^ "I.B.M. Displays New Processor". The New York Times. June 23, 1983.
  8. ^ "Motorola to acquire computer maker". The New York Times. December 11, 1981.
  9. ^ Jay Bryan (October 21, 1979). "Mr. Fixit of Northern Telecom". The New York Times.
  10. ^ Peter J. Schuyten (February 4, 1979). "To Clone a Computer". The New York Times.
  11. ^ "Honeywell's New Computer". The New York Times. October 15, 1982.
  12. ^ Peter J. Schuyten (September 27, 1979). "Technology". The New York Times.
  13. ^ "Distributed data processing with Hadoop, Part 3".
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