Magnetic bubble file system

Details Magnetic bubble file system Magnetic bubble file system

1984-10-25

1987-04-14

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

G11C 1908

Patent

active

046583769

ABSTRACT:
A magnetic bubble file system having a magnetic bubble memory includes magnetic bubble memory devices as memory media for constructing a plurality of pages of information store areas read and written by page. The store area of a selected one of the plurality of pages of the magnetic bubble memory devices is allotted to a write protection information store page for the magnetic bubble memory. The write protection information store page stores write protection information of each page of data store pages of the magnetic bubble memory. The magnetic bubble file system determines whether data can be written in to the data store page, in accordance with the write protection information stored in the write protection information store page.

REFERENCES:
patent: 4393500 (1983-07-01), Imazeki et al.
Electronics Design-vol. 27, No. 15, Jul. 19, 1979, pp. 32-33.

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