Browsing Project Whirlwind by Title

The noise problem in the coincident-current memory matrix

Childress, J. D. (Lincoln Laboratory - Division 6, 1956-02-13)

Magnetic ferrites which have square hysteresis loops are being used as memory elements in high-speed digital computers. The limiting factor in memory reliability is the noise generated by the magnetic cores which are ...

A Non-destructive Read System For Magnetic Cores

Buck, Dudley A. (MIT Digital Computer Laboratory, 1952-03-24)

A non-destructive read system for magnetic cores is proposed which involves a quadrature field and which promises to be fast.

Non-Staff Organization Chart

Boyd, Hugh R. (MIT Servomechanisms Laboratory, 1948-06-16)

Administrative memorandum from project Whirlwind research teams on project organization.

Non-Staff Organization Chart

Boyd, Hugh R. (MIT Servomechanisms Laboratory, 1948-10-20)

Administrative memorandum from project Whirlwind research teams on project organization.

Nondestructive Sensing of Magnetic Cores

Buck, Dudley A.; Frank, W. I. (MIT Digital Computer Laboratory, 1952-03-24)

A "Nondestructive" method for sensing the information state of magnetic-memory cores is under development. This new method involves the use of a quadrature magnetic field which, when pulsed, produces an output voltage. The ...

Notes for RDB Committee Meeting

Forrester, Jay W. (MIT Servomechanisms Laboratory, 1949-08-29)

Report containing notes on Project Whirlwind for an RDB Committee Meeting, including project history, project description, project status, future plans, administration, and related M.I.T. work.

Notes on systems planning meeting 14 March 1955, 0930E

Mazza, J. V. (Lincoln Laboratory - Division 6, 1955-03-16)

Minutes of a systems planning meeting discussing display status, IBM organization changes, XD-1 schedules, and FSQ timing.

Notes on systems planning meeting of March 7, 1955 at 0930E

Mazza, J. V. (Lincoln Laboratory - Division 6, 1955-03-07)

Minutes of systems planning meeting discussing report on FSQ-8, schedules for ancillary equipment in the experimental subsector, and SAGE performance goals.

Notes on Visit to Moore School, University of Pennsylvania on September 9, 1947

Rich, E. S. (MIT Servomechanisms Laboratory, 1947-09-09)

Memorandum on a visit to Moore School, University of Pennsylvania on September 9, 1947. Topics include the purpose of the visit, magnetic recording, and mercury delay lines.

Nucleation of Domains of Reverse Magnetization and Switching Characteristics of Magnetic Materials

Goodenough, John B.; Menyuk, Norman (MIT Digital Computer Laboratory, 1953-03-09)

The critical requirements for a ferromagnetic memory core are reviewed. Domains of reverse magnetization must form and grow within a core if its induction is to be reversed. The nature of the nucleation centers for these ...

One One or the Other

Mayer, Rollin P.; Papian, William N. (Lincoln Laboratory - Division 6, 1954-05-28)

Memorandum on notation for describing binary states without ambiguity.

Organization and tasks of Division 6

Forrester, Jay W. (Lincoln Laboratory - Division 6, 1954-11-16)

Summary of the organization and duties of Division 6 staff members, including general organization, Group 61, Group 62, Group 63 magnetic materials and advance development, Group 64 production FSQ-7 and WWI, Group 65 vacuum ...

Paper on Ferromagnetic and Ferroelectric Memory Devices

Papian, William N. (MIT Digital Computer Laboratory, 1952-08-06)

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.

Paramagnetic Behavior of Ferrites Containing Two Kinds of Magnetic Ions

Menyuk, N. (Lincoln Laboratory - Division 6, 1955-01-17)

The Neel theory of the paramagnetic behavior of susceptibility in ferrimagnetic ferrites is extended to include materials containing two kinds of magnetic ions. The equation of state is derived for the general case of an ...