Abstract
The Data Management component of the new IBM 8100 Distributed Processing Programming Executive (DPPX) provides for the storage and retrieval of data on disk and tape. Its objectives are to support a broad range of functions and be easy to use, be easily extendible, and entail minimal cost for the user. The Data Management component is designed to meet those objectives by means of a layered structure, an improved concept of device independence, and the use of catalogs.
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