Papian, William N.

Scope and Contents MIT DIC 6889. Project Whirlwind Controlled Distribution Memo 6D-95. A small, ring-shaped, ferromagnetic core with properly "rectangular" B-H characteristics may be operated so that its flux polarity reverses only when the correct combination of two or three magnetizing windings are coincidentally excited. Such cores may then be used as memory devices and assembled into a two- or three-dimensional memory system with storage-cell selection at the intersection of two or three space...

Scope and Contents MIT DIC 6345. Project Whirlwind Report R-192. Because it presents information of general interest, this thesis report, which has had only limited distribution, is being issued as a Project Whirlwind R-series report. Any new data-storage development which suggests promise of increased reliability and decreased bulk is of immediate interest to the builders of a large scale digital computer such as Whirlwind. The use of rectangular-loop magnetic cores in a multi-dimensional storage scheme, as...

Scope and Contents

MIT DIC 6345. Project Whirlwind Memo M-975. Master's Thesis Proposal: A Coincident-Current Magnetic Memory Unit.

Scope and Contents

MIT DIC 6345. Project Whirlwind Engineering Note E-379. This memorandum contains the abstract of Report R-192, a Master's Thesis, by W. N. Papian.

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-2121. This note is meant to satisfy item 1 (General Description of Function Needed) of the WWII Time Schedule for this subject.

Scope and Contents

Project Whirlwind Memo M-2428. Joint IBM-MIT meetings were held at Project High on the 22nd of September to discuss the XD-1-2 internal memory.

Scope and Contents

Project Whirlwind Memo M-2405. Joint IBM-MIT meeting were held at MIT on the 8th and 9th of September to discuss the XD-1 internal memory. This memorandum lists people involved, items on which a common point of view was reached, and unsettled questions.

Scope and Contents

Project Whirlwind Memo M-1377-3. A listing of reports, Engineering Notes, and Memoranda on various aspects of the ferromagnetic core activity is presented.

Scope and Contents

Project Whirlwind Memo M-1377-1. A listing of reports, Engineering Notes, and Memoranda on various aspects of the ferromagnetic core activity is presented.

Scope and Contents

Project Whirlwind Memo M-1377. A listing of reports, Engineering Notes, and Memoranda on various aspects of the ferromagnetic core activity is presented.

Scope and Contents

Project Whirlwind Memo M-1377-2. A listing of reports, Engineering Notes, and Memoranda on various aspects of the ferromagnetic core activity is presented.

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-1371. The 16 x 16 metallic array has been operated successfully. Only partial operation of the 16 x 16 ceramic-core switch-driven array has been accomplished. Some progress has also been made with pulse transformer investigations, ferroelectric storage, and new magnetic materials. Memorandum on activity by Digital Computer Laboratory research staff on magnetic cores.

Scope and Contents of the Collection The Forrester patent litigation extended over many years and resulted in a voluminous set of records. The records represent the documentation assembled and produced by MIT and the law firm of Kenway & Jenney in the course of the suits.The collection fully documents the development of magnetic core memory and MIT's involvement in the patent litigation cases. It also provides information concerning the administrative handling of a major university patent and the relationship...

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-1965. This note is meant to satisfy item 1 (General Description of Function Needed) of the WWII Time Schedule for this subject.

Scope and Contents

Project Whirlwind Memo M-2839. Memorandum on notation for describing binary states without ambiguity.

Scope and Contents

MIT DIC 6889. Project Whirlwind Engineering Note E-470. This paper contains the material for a lecture to be given on September 12, 1952 in the M.I.T. Summer Session course, "Theory and Applications of Dielectric Materials", under the direction of Professor A. R. von Hippel.

Scope and Contents

MIT DIC 6345. Project Whirlwind Engineering Note E-406. Successful operation of a four-core magnetic-memory array indicates the soundness of a multi-coordinate storage and selection scheme. The ability of one core to retain information in the face of an unlimited amount of disturbing activity was tested, and current-variation margins determined.

Scope and Contents

MIT DIC 6345. Project Whirlwind Memo M-1028. Report No. 3. Progress Report to the Department Committee on Graduate Study and Research on a Coincident-Current Magnetic Memory Unit.

Scope and Contents

MIT DIC 6345. Project Whirlwind Memo M-1011. Report No. 2. Progress Report to the Department Committee on Graduate Study and Research on a Coincident-Current Magnetic Memory Unit.

Scope and Contents

MIT DIC 6345. Project Whirlwind Memo M-997. Report No. 1. Progress Report to the Department Committee on Graduate Study and Research on a Coincident-Current Magnetic Memory Unit.

Scope and Contents

MIT DIC 6345. Project Whirlwind Memo M-1061. Report No. 5. Progress Report to the Department Committee on Graduate Study and Research on a Coincident-Current Magnetic Memory Unit.

Scope and Contents

MIT DIC 6345. Project Whirlwind Memo M-1043. Report No. 4. Progress Report to the Department Committee on Graduate Study and Research on a Coincident-Current Magnetic Memory Unit.

Scope and Contents

MIT DIC 6345. Project Whirlwind Engineering Note E-422. There are ferromagnetic cores on the market today which are suitable for use in high-speed multi-dimensional storage arrays and in fast stepping registers. Tests made here indicate the high promise of Armco Mo-Permalloy-216, a metal, and Ferramic A, a ceramic. Gradual improvements in the characteristics of pertinent core materials are expected to continue.

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-2120. A resume of the WWII areas expected to be covered during the next few months in the work of the magnetic-core memory "sections" of MIT and IBM follows. It was discussed at a meeting on the 24th of April attended by D. R. Brown, N. P. Edwards, W. Ogden, and W. N. Papian.

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-1495. Memorandum summarizing the discussion of the Whirlwind II Meeting of April 25, 1952. Topics include engineering problems, general things being worked on, and the history of recent developments.

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-1964. This note is intended to satisfy item I (General Description of Function Needed) of the WWII time schedule for these subjects.