Project Whirlwind: Recent submissions

Now showing items 1221-1240 of 1737

    • 6889 Air Defense Bi-weekly February 1, 1952 

      Digital Computer Laboratory Administrative Staff (MIT Digital Computer Laboratory, 1952-02-01)
      Bi-weekly progress report of Digital Computer Laboratory research teams.

    • Group 62 Section Leaders Meeting -- November 23, 1953 

      Kromer, A. P. (Lincoln Laboratory - Division 6, 2009-05-09)
      A proposal for change in the plan for actual construction of the prototype models has been made by IBM. Circuit modifications and changes in equipment arrangement have resulted in significant reductions in the number of ...

    • B-H Loop Squareness in the Magnesium-Manganese Ferrites 

      Goodenough, John B. (Lincoln Laboratory - Division 6, 1953-10-22)
      A mechanism is proposed whereby a tetragonal 2MOMnO₂ phase is precipitated at {101} surfaces in manganese-rich spinel systems. The critical Mn[superscript +4] content for precipitation is estimated from studies of lattice ...

    • Project Grind Meeting of July 2, 1953 (Sixth Day) 

      Kromer, A. P.; Mayer, Rollin P. (MIT Digital Computer Laboratory, 1953-07-08)
      This meeting concerned standard circuits and the action of the standards committee. Four tube types were definitely approved and it was decided that O.1µsec pules will be used wherever possible in the system. It was generally ...

    • Activities of the Basic Circuit Sub-Committee 

      Heineck, Arthur (Lincoln Laboratory - Division 6, 1953-08-03)
      Memorandum on the membership and activities of the basic circuit sub-committee.

    • Project Grind Meeting of June 24, 1953 (First Day) 

      Kromer, A. P.; Mayer, Rollin P. (MIT Digital Computer Laboratory, 1953-06-29)
      At this meeting slowed down video inputs, video mappers, and slowed down video input registers were discussed. A general description for the input registers was agreed upon.

    • Joint Group 37 - Group 63 Meeting on Ferrite Research 

      Brown, David R. (Lincoln Laboratory - Division 6, 1953-10-16)
      A review of the interest of Group 63 has shown which basic quantities require experimental determination. These include anisotropy, exchange coefficient, and relaxation frequency. Measurements can be made most directly ...

    • Project Grind Meeting of June 30, 1953 (Fourth Day) 

      Kromer, A. P.; Mayer, Rollin P. (MIT Digital Computer Laboratory, 1953-07-06)
      The output display system and the manual input buffer drum were discussed at this meeting. A display rate of once every 2 seconds was tentatively accepted. There will be 16 words per track,** allowing for a display of ...

    • Group 63 Seminar on Magnetism, LI 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1953-05-06)
      This memo is a summary of a Group 63 seminar on magnetism. Topics include the magnetic characteristics of ferrites in the neighborhood of the Curie temperature.

    • Planning, Scheduling and Administering the AN/FSQ-7 Program: Progress Reports to the Scheduling Office (Supplement to M-2300) 

      Forrester, Jay W. (Lincoln Laboratory - Division 6, 1953-07-15)
      This memorandum outlines procedures for making progress reports to the Lincoln Laboratory scheduling office.

    • A Large Planar Switch For Register Selection In A Magnetic-core Memory 

      Raffel, Jack I. (MIT Department of Electrical Engineering, 1953-08-31)
      Master's Thesis Research Proposal on a Large Planar Switch for Register Selection in a Magnetic-core Memory. The purpose of this thesis is to evaluate a proposed selection scheme for a magnetic-core memory and to compare ...

    • Pulse Response of Ferrite Memory Cores 

      Freeman, J. R. (Lincoln Laboratory - Division 6, 1953-12-15)
      The fourteen basic pulsed voltage outputs of ferrite memory cores are defined and discussed. Photographs are presented. The distinctive appearances of certain outputs are noted. The concept of reversible and irreversible ...

    • Summary of MIT-IBM Collaboration, August 1 through August 31, 1953 

      Kromer, A. P. (Lincoln Laboratory - Division 6, 1953-09-11)
      The continued engineering work on AN/FSQ-7 equipment during this period has covered considerable activity in the fields of standardization on components, materials, etc.; circuits and vacuum tubes; electrical design of ...

    • Project Grind Meeting of July 15, 1953 (Seventh Day) 

      Kromer, A. P.; Mayer, Rollin P. (Lincoln Laboratory - Division 6, 1953-08-13)
      Topics discussed at this meeting were mapper subcontracts, cross-telling, review of the drums, card and paper tape machines, input counters, manual inputs, and power supplies. It was generally agreed that paper tape will ...

    • Proposed Sense Winding for a 64 x 64 Memory Plane 

      Canty, W. J. (MIT Digital Computer Laboratory, 1953-07-23)
      Memorandum on the investigation of the optimum sense winding geometry of a 64 x 64 memory plane.

    • Group 63 Seminar on Magnetism, XVI 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1952-12-09)
      This memo is a summary of a Group 63 seminar on magnetism. Topics include the free electron model and the model of electrons in a periodic potential.

    • Group 63 Seminar on Magnetism, XLIV 

      Loeb, Arthur L.; Buck, Dudley A.; Menyuk, Norman (MIT Digital Computer Laboratory, 1953-03-26)
      This memo is a summary of a Group 63 seminar on magnetism. Topics include the Hartree and Hartree-Fock methods of arriving at a self-consistent field determination.

    • Whirlwind II Meeting of February 8, 1952 

      Taylor, Norman H. (MIT Digital Computer Laboratory, 1952-02-18)
      This note abstracts the discussion of the meeting attended by the following engineers. It is intended to provide a record to trace the evolution of the WWII system.

    • Trip Report of Visit to Bell Telephone Laboratories, IBM, Glenco Naval Research Laboratory and Dr. C. F. Pulvari 

      Buck, Dudley A. (MIT Digital Computer Laboratory, 1952-07-17)
      A trip was made at the conclusion of the thesis work on ferroelectrics for digital information storage and switching to compare progress and to exchange ideas with other researchers in this field. In addition, one visit ...

    • Conference on Thin Evaporated Metal Films 

      Loeb, Arthur L. (MIT Digital Computer Laboratory, 1952-10-06)
      A meeting was held by representative of Group 63, Project Whirlwind, Group 35, Project Lincoln and the Chemistry Department to coordinate research on thin metal films. M. I. T. appears to have all the facilities for the ...