Bubble domain relational data base system

Details Bubble domain relational data base system Bubble domain relational data base system

1978-05-04

1980-09-02

Thomas, James D.

Boots, shoes, and leggings

365 15, 365 49, G06F 700, G06F 1300, G11G 1114, G11G 1908

Patent

active

042210038

ABSTRACT:
A relational data base system using magnetic bubble domain storage to eliminate data formatting, and dynamic indexing loops to facilitate convenient marking during data qualification and to eliminate redundant traversing of disqualified data during the search operation. A data base is stored in columnized storage tables which insure minimum input/output data traffic during search and retrieval. A suitable storage chip is organized in a major/minor loop organization, with several sections of transfer lines to provide selective access to individual groups of storage loops. Off-chip circuitry includes a comparator for comparing data read from a bubble storage chip with a given criterion in order to select appropriate data, and a dynamic indexing loop which keeps track of comparisons. This indexing loop provides an input to a bubble chip controller so that each subsequent search and compare is done only on already qualified data. This eliminates the need for repeated searching through the same data.

REFERENCES:
patent: 3831152 (1974-08-01), Perneski
patent: 3997882 (1976-12-01), Goyal
patent: 4021791 (1977-05-01), Bobeck
patent: 4053871 (1977-10-01), Vidalin
patent: 4128891 (1978-12-01), Lin

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