Static information storage and retrieval – Addressing
Patent
1984-05-18
1986-03-11
Fears, Terrell W.
Static information storage and retrieval
Addressing
365189, G11C 1300
Patent
active
045758271
ABSTRACT:
Data recording is self-archiving by non-delete recording combined with a directory that grows with each recording in a manner that all previous recordings related to the respective files or data sets are pointed to in the directory. Non-delete recording is applicable to those record media exhibiting indelible characteristics, such as write-once optical media and to rewritable media, such as magnetic recording media of all types. Each directory entry is identified by file or data set name and has one field for each data segment currently a part of the file or data set. Each field has a pointer to its represented data irrespective of when it was recorded. Each directory entry also points to the entry associated with the immediately preceding recording operation on any part of the file or data set such that data changes can be traced using the directory. The directory is stored in one address end portion of the data storing medium while the data is stored in the opposite address end portion--the directory is preferably at the low addresses while the data is at the high addresses. The directory recording is at ever increasing addresses while the data recording is at ever decreasing addresses.
REFERENCES:
patent: 4419725 (1983-12-01), George et al.
patent: 4419746 (1983-12-01), Hunter et al.
IBM Disk Operating System Manual, Personal Computer Language Series, pp. 4-3, 4-4, 4-5, 1981.
Breitenback et al., IBM Technical Disclosure Bulletin, vol. 17, No. 11, Apr. 1975, pp. 3190-3193.
Tennison et al., IBM Technical Disclosure Bulletin, vol. 18, No. 3, Aug. 1975, pp. 619-621.
Fears Terrell W.
International Business Machines - Corporation
Somermeyer H. F.
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