Project Whirlwind: Recent submissions
Now showing items 1121-1140 of 1737
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Joint Group 37 - Group 63 Meeting on Ferrite Research
(Lincoln Laboratory - Division 6, 1953-10-09)Groups 37 and 63 will pool their resources to support a program for obtaining single-crystal ferrites. An evaluation of organizations best equipped to undertake the program is the first step. Microwave line-broadening ... -
Joint Meeting on Packaging of WII
(MIT Digital Computer Laboratory, 1953-06-17)Memorandum on a joint meeting on packaging of Whirlwind II. The meeting was opened by Harold Ross of IBM who presented the latest recommendation for the number of types of pluggable units and the types of tubes in each. ... -
Testing of Individual Cores in MTC Memory Planes
(MIT Digital Computer Laboratory, 1953-06-16)The 32 x 32 magnetic-core memory planes for MTC were constructed from cores tested and sorted on a production basis. To obviate the possibility of defective cores, each core was retested after it had been wired into a ... -
The Construction of Memory Planes for the MTC Memory
(MIT Digital Computer Laboratory, 1953-06-10)Seventeen memory planes were built for MTC. Each has 1024 cores, 128 coordinate driving lines, a digit-plane winding, and a sensing winding. Four days were required to wire each plane with addition time for frame construction, ... -
First Meeting of MIT-IBM Central Standards Committee
(MIT Digital Computer Laboratory, 1953-06-22)The committee met June 19, at MIT. Components Application Memos #1, #2, #3A, #3C, and #8, pf the Electronics Components Committee were approved in substance but are to be rewritten by IBM into an easily usable form. -
Group 63 Seminar on Magnetism, Vol. 2, I
(Lincoln Laboratory - Division 6, 1953-10-29)This memorandum covers the first two meetings of the 1953-1954 seminar on magnetism. It represents a survey of the literature on ferromagnetic anisotropy and is intended to serve as an introduction to the subject. It does ... -
A Magnetic Core Test Storage
(MIT Digital Computer Laboratory, 1953-06-15)The toggle-switch test storage units in WWI and MTC use large numbers of crystal diodes and vacuum tubes. A much simpler unit might be possible using a modified magnetic matrix switch which will both select the words and ... -
Project Grind Meeting of July 1, 1953 (Fifth Day)
(MIT Digital Computer Laboratory, 1953-07-06)This meeting concerned crosstelling, output drums, output links, digital information display, maintenance console and mechanical design. Details on the output links must be decided soon because many people outside of the ... -
Minutes or Notes of Engineering Discussions Between MIT and IBM Personnel
(MIT Digital Computer Laboratory, 1953-07-21)Recording of engineering discussions is vital to orderly progress on our joint project. However, it is necessary to distinguish between such notes which are prepared for possible future reference and documents which represent ... -
6889 Air Defense Bi-weekly February 29, 1952
(MIT Digital Computer Laboratory, 1952-02-29)Bi-weekly progress report of Digital Computer Laboratory research teams. -
Group 61 Bi-weekly, March 14, 1952
(MIT Digital Computer Laboratory, 1952-03-14)Bi-weekly progress report of Group 61 research teams. -
Laboratory Personnel
(MIT Digital Computer Laboratory, 1953-10-01)Memorandum listing Laboratory Personnel of the MIT Digital Computer Laboratory. -
Project Grind Meeting of June 25, 1953 (Second Day)
(MIT Digital Computer Laboratory, 1953-06-29)At this meeting marginal checking, power supplies and magnetic memory were discussed. It was generally agreed that more work remains to be done on marginal checking and power supplies before decisions can be made, and that ... -
Group 62 Section Leaders Meeting, November 2, 1953, AN/FSQ-7 Equipment Design Program
(Lincoln Laboratory - Division 6, 2009-05-09)Operation of the core memory of the WWI--Cape Cod System has resulted in several changes in the electronics to improve operating margins. Decision was reached to base drum circuit design on a maximum memory cycle time of ... -
Memory Test Computer Fuse Alarm System
(MIT Digital Computer Laboratory, 1953-05-05)The fuse alarm system in MTC is designed so that if a fuse in any DC line blows, all DC voltages will be removed from the computer. A light goes on at the panel on which the fuse blows, a light goes on at the console, and ... -
MTC Tests on Magnetic Memory - Automatic Memory Display
(MIT Digital Computer Laboratory, 1953-05-05)This is the first of a series of M-notes describing procedures, programs, and results of MTC tests on the magnetic memory. Automatic memory display is a simple test procedure for reading, rewriting, and displaying the ... -
Memory Test Computer Marginal Checking System
(MIT Digital Computer Laboratory, 1953-05-08)Marginal checking is performed in MTC by inserting an additional power supply in series with the line which is to be checked. This power supply is variable about zero, thus permitting either a positive or negative excursion ... -
Laboratory Personnel
(MIT Digital Computer Laboratory, 1953-11-02)Memorandum listing Laboratory Personnel of the MIT Digital Computer Laboratory. -
Interpretation of Memory-Core Specifications
(Lincoln Laboratory - Division 6, 1953-09-22)The only tests applied to all cores are those to determine acceptable values of [subscript r]V[subscript 1]. Other tests are made on a sample basis. Since the memory-core-procurement program is on a development basis, but ... -
Planning, Scheduling and Administering the AN/FSQ-7 Program (With Broad Principles of MIT-IBM Relationships and Some Detail on Division 6 Procedures.)
(Lincoln Laboratory - Division 6, 1953-07-15)The purpose of this memorandum is to describe generally the current planning activities for the AN/FSQ-7 equipment.
