File:US3525080-GE-645-01.png

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Captions

Captions

US3525080 Patent showing block diagram of GE-645 mainframe with Extended Memory Unit

Summary

[edit]
Description
English: US Patent connected to Project MAC (Multics project). This shows a block diagram of GE-645 mainframe and how it's connected to the 'Extended Memory Unit' (aka 'Drum') which was 4MW (16 MB) device for paging to.
Date
Source

US Patent 3525080

https://patentimages.storage.googleapis.com/eb/d1/b4/f1ddabbf176039/US3525080.pdf
Author

DATA STORAGE CONTROL APPARATUS FOR A MULTPROGRAMMED DATA PROCESSING SYSTEM John F. Couleur, Dallas, Tex., and Edward L. Glaser, South Euclid, Ohio, assignors to Massachusetts Insti tute of Technology, Cambridge, Mass., a corporation of Massachusetts, and General Electric Company, New

York, N.Y., a corporation of New York

Licensing

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Public domain The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See 37 CFR 1.71(d), 37 CFR 1.84(s)

The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}.

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current16:32, 28 September 2023Thumbnail for version as of 16:32, 28 September 20236,960 × 10,224 (2.19 MB)Dóeltenga (talk | contribs)Uploaded a work by DATA STORAGE CONTROL APPARATUS FOR A MULTPROGRAMMED DATA PROCESSING SYSTEM John F. Couleur, Dallas, Tex., and Edward L. Glaser, South Euclid, Ohio, assignors to Massachusetts Insti tute of Technology, Cambridge, Mass., a corporation of Massachusetts, and General Electric Company, New York, N.Y., a corporation of New York from US Patent 3525080 https://patentimages.storage.googleapis.com/eb/d1/b4/f1ddabbf176039/US3525080.pdf with UploadWizard

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