Taylor, Norman H.

Scope and Contents

Project Whirlwind Memo M-2940. The XD-1 and XD-2 Systems have reached a point where changes cannot be made unless mandatory to insure operation. The production design is approaching a similar stage and any suggestions for changes should be made soon.

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-1753. The present schedule for the development of the first prototype model of WWII calls for the urgent decisions concerning specifications and block diagrams to be made early in 1953 so that time will be available to procure, construct, and thoroughly test the machine by January 1, 1955.

Scope and Contents

Division 6 Limited Memo 6L-271a. Division 6 Limited Memo 6L-271b. Memo regarding 1956 interim report. Author: F. R. Rodgers for N. H. Taylor for Sage Improvement Committee. Reason: C. W. Farr reviewing for declassification.

Scope and Contents Division 6 Memo M-3861. Minutes of an IBM-SO concurrent meeting discussing test equipment for duplex central; PERSELBSN codes; proposal for revision of 723 punch circuits; second floor layout for Building F; LRI monitor breadboard; console equipment and label layout; maintenance intercomm for an FSQ-8 with an FSQ-7; changes to display consoles XD-1; crosstell; selection and in-out; output systems; LRI; and CPDD desk. Present: (IBM) R. C. Marden, R. A. Imm, H. J. White, W. S. Squire, L. V....

Scope and Contents Division 6 Memo M-3917. Minutes of an IBM-SO concurrent meeting discussing maintenance, furniture, fixtures, and miscellaneous nonexpendable items for combined AN/FSQ-7 and AN/FSQ-8 site; drum specifications for the production system; maintenance intercommunication specifications for AN/FSQ-7 combat direction central; MEL Mod A of AN/FSQ-7 sites 1-6; changes to display console specifications; XD-1 console equipment and label layouts; track display drum change; FSQ-8 specifications; LL-SO; OB...

Scope and Contents Division 6 Memo M-3952. Minutes of an IBM-SO concurrent meeting discussing change to duplex central specifications for the GFI mapper consoles; memory element specification; change to AN/FSQ-7 command post DD desk specifications for the production machine; color of consoles; and location of the edge lighting dimmer controls. Present: (IBM) R. Imm, W. S. Squire, J. J. Coughlin, R. C. Marden, P. Longo; (MIT) R. D. Buzzard, W. Ayer, B. Green, N. Jones, J. Giordano; (AFCRC) P. Sharkey, J....

Scope and Contents Division 6 Memo M-3942. Minutes of an IBM-SO concurrent meeting discussing M-revision of the first floor layout of Building F; display console changes; change to long-range radar input specifications for AN/FSQ-7; changes to display specifications; change of point selection address and addition of vector intensity control for situation display generator; OB drum search proposal; prototype systems spare parts policy revision; minimum equipment list for AN/FSQ-8 combat control central; change...

Scope and Contents Project Whirlwind Report R-224. Circuits which depend on the absolute stability and reproducibility of components have proved to be unreliable and often impractical for field use. A study of tolerances of a circuit to its component variations, when made a part of the design procedure, will lead to better equipment, producible and usable in the field. Such study often leads to new circuits and new ways of obtaining results. Talk delivered by N. H. Taylor at the Electronic Components...

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-1768. Circuits which depend on the absolute stability and reproducibility of components have proved to be unreliable and often impractical for field use. A study of the tolerances of a circuit to its component variations, when made a part of the design procedure, will lead to better equipment, producible and usable in the field. Such a study often leads to new circuits and new ways of obtaining results.

Scope and Contents Division 6 Limited Memo 6L-204. In a letter dated 28 April 1954 from J. W. Forrester to C. McElwain, it was stated that certain tubes are important components in the FSQ-7 which should have a second source. Subsequent action led to a recommendation that a second source for each of these types be set up. This note emphasizes two minimum requirements on any program if it is to meet over-all System requirements: interchangeability of tubes from the two sources and process and quality control...

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-1444. Memorandum outlining the plan to obtain a WWII computer in the minimum amount of time and gives the dates on which certain decisions must be reached.

Scope and Contents

Project Whirlwind Memo M-1243. A one day visit to ERA's 1101 System is discussed. The system seems to be very reliable and is in use 90-95% of the time scheduled. Marginal Checking is used with filament voltage as the method of voltage variation. This results in a high tube replacement rate. The Magnetic Drum Storage is of particular interest as its performance seems to be highly satisfactory. Memorandum on a visit by Electronic Computer Division research teams to ERA's 1101 System.

Scope and Contents

MIT DIC 6345. Project Whirlwind Memo M-1152. Memorandum on a visit by project Whirlwind I research teams to University of Illinois and Engineering Research Associates for a demonstration of the IAS computer, discussion of ERA's computer experience and its relation to future work in the field, evaluation of the magnetic drum as a reliable element in computing systems, and discussion of electrostatic storage and possible use of the RCA Selectron.

Scope and Contents

Project Whirlwind Memo M-2250. Memorandum on policies for clearing visitors to Group 62 through Mr. Forrester's office.

Scope and Contents

MIT DIC 6345. Project Whirlwind Limited Memo L-15. Report discussing the impressions gained on visits to several laboratories and a general evaluation of what they are doing as it may apply to the future activities of Whirlwind.

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-1453. Memorandum on the Whirlwind II meeting of April 4, 1952 on memory requirements, word length, and logical design versus reliability and speed.

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-1461. Memorandum on the Whirlwind II meeting of April 11, 1952 on the activities of the various groups working on WWII.

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-1397. 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. Present: C. Adams, D. Brown, R. Everett, H. Fahnestock, J. Forrester, H. Grosch, W. Hosier, J. Jacobs, R. Jeffrey, W. Linvill, R. Mayer, W. Papian, R. Wieser.

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-1402. 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. Present: R. Everett, H. Fahnestock, J. Forrester, H. Grosch, W. Hosier, J. Jacobs, R. Jeffrey, W. Linvill, R. Mayer, W. Papian.

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-1407. 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. Present: D. Brown, R. Everett, J. Forrester, H. Grosch, W. Hosier, J. Hughes, J. Jacobs, R. Jeffrey, N. Jones, W. Linvill, R. Mayer, B. Morriss, W. Papian, N. Taylor.

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-1417. 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. Present: R. Everett, W. Hosier, J. Hughes, J. Jacobs, R. Jeffrey, W. Linvill, R. Mayer, J. McCusker, W. Ogden, R. Pacl, W. Papian, C. Schultz, N. Taylor, J. Woolf.

Scope and Contents MIT DIC 6889. Project Whirlwind Memo M-1570. Work on magnetic circuits for logical applications was reviewed by H. Rising, R. Sims and G. Briggs. Members Present: H. Anderson, I. Aronson, P. Baltzer, G. Briggs, D. Brown, R. Callahan, J. Crane, R. DiNolfo, D. Eckl, R. Everett, R. Farmer, S. Fine, J. Forrester, E. Gates, R. Gerhardt, A. Guditz, A. Heineck, W. Hosier, J. Jacobs, R. Jeffrey, R. Jenney, N. Jones, A. Katz, C. Kirk, W. Klein, W. Linvill, R. Mayer, J. McCusker, J. Mitchell, C....

Scope and Contents MIT DIC 6889. Project Whirlwind Memo M-1585. Memorandum summarizing the discussion of the Whirlwind II Meeting of June 13, 1952 on a report by D. Eckl on transistor circuits and a report by W. Papian on the progress of the magnetic memory section. Members Present: H. Anderson, R. Best, G. Briggs, D. Brown, R. Callahan, S. Dodd, D. Eckl, R. Everett, R. Gerhardt, A. Guditz, A. Heineck, W. Hosier, J. Jacobs, R. Jeffrey, A. Katz, W. Klein, W. Linvill, R. Mayer, J. McCusker, W. Ogden, K. Olsen,...

Scope and Contents MIT DIC 6889. Project Whirlwind Memo M-1562. Memorandum summarizing the discussion of the Whirlwind II Meeting of June 18, 1952 to set forth such decisions and progress as has been made on the unnamed prototype computer, formerly referred to as WWIA, since christened MTC, for Memory Test Computer. Members Present: N Alperin, H. Anderson, P. Baltzer, D. Brown, R. Callahan, J. Crane, R. DiNolfo, D. Eckl, M. Epstein, R. Everett, R. Farmer, S. Fine, J. Forgie, W. Frank, E. Gates, A. Guditz, A....

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-1420. Memorandum on the Whirlwind II meeting of March 7, 1952. Topics include the possibility of building a "passive" computer, static multipliers, static elements, ferro-electric switches, and symbols for ferro-magnetic circuits.

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-1428. Memorandum on the Whirlwind II meeting of March 14, 1952 on a number of questions which remain to be settled before attempting to build a prototype computer.

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-1432. Memorandum on the Whirlwind II meeting of March 21, 1952 on different approaches to building the WWIA prototype computer.

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-1436. Memorandum on the Whirlwind II meeting of March 28, 1952 on D. Buck's non-destructive read-out and R. Mayer's single-time-pulse instruction system.

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-1498. Memorandum summarizing the discussion of the Whirlwind II Meeting of May 9, 1952. Topics include engineering problems with transistors and the history of recent developments.