Series 1: Technical Documents
Grace Murray Hopper Collection
NMAH.AC.0324
Page 7 of 38
Table I above, also fifth page; sixth page is Plugging Instructions as above with
red pencil changes; seventh page, Additional Operating Instructions with pencil
changes.
Box 1, Folder 9
Operating Instructions for Problem L includes: Operating Instructions, Plugging
Instructions, 2 Plugging Diagrams, Figure I - graph of values over which tapes
run, Table I - table to check off values as computed from Grace Hopper's
scrapbook.
Box 1, Folder 9
Operating Instructions Problem L folder on operator's desk contents include:
Box 1, Folder 9
2) Problem L Operating Instructions 22 December 1944 Pages 1-2 Operating
instructions 3 Test Point for Tables R4X, R4A, R4C, R4CZ, R4B 4 Note on
Wronskion on graph paper, pencil doodles 5 Operating Instructions, 6 Directions
for Testing 7-9 Test Tapes for Problem L: Storage Counters (back of p. 7 Sample
Run Rolling and Reset Test) 10 Test Tapes for Problem L: Multiplication; (back of
p. 10 Sample run Multiply Test); 11-12 Test Tapes for Problem L: Interpolator #3;
13 Plugging Diagram; (3) Determination of Which Machine Function is Causing
Trouble, a debugging note to the operators
Box 1, Folder 9
Instructions 2 Counter Diagram: Primed Quantities 3 Counter Diagram:
Unprimed Quantities (4) Graph similar to Figure I above Table similar to Table I
above
Box 1, Folder 10
Problem L Coding a first draft by Hopper
Box 1, Folder 11
Problem L Coding a second draft by Hopper
Box 1, Folder 12
Problem L Coding final draft by Hopper
Box 1, Folder 13
Calculation of the functions h1(z), h1(z), h2(z), H2(z). by Hopper; Part II: Method
of Computation of the Functions in Hankel Functions book (Volume 2: Comp Lab
Annals) pp. xxx-xxxi, a preliminary version
Box 1, Folder 14
Problem L Report of the development of the coding for Problem L (?) by Hopper
Box 1, Folder 15
Tables of the Modified Hankel Functions of Order One-Third and of Their
Derivatives; by the Staff of the Computation Laboratory Volume 2 of the Annals
of the Computation Laboratory xerox copy of title page through page 3 this is the
result of Problem L
Box 1, Folder 16
Invitation to Lieutenant Grace M. Hopper "to attend the Formal Acceptance
Ceremonies of the Automatic Sequence Controlled Calculator" Monday, August
7, 1944, The Faculty Room of University Hall
Box 1, Folder 17
Invitation to LT. Hopper from Harold M. Westergaard, Dean of the Graduate
School of Engineering "to attend an informal luncheon to be held... at one o'clock
at the Harvard Faculty Club... before the ceremonies of formal acceptance of
the Automatic Sequence Controlled Calculator."; place card lettered "Lt. Hopper"
attached
Box 1, Folder 18
Invitation to Dr. Grace Hopper: "President Conant requests the honor of your
presence at luncheon in the Warburg Room of the Fogg Museum of Art on
Series 1: Technical Documents
Grace Murray Hopper Collection
NMAH.AC.0324
Page 8 of 38
Tuesday, January the seventh at twelve-fifteen o'clock on the occasion of the
Opening of The Computation Laboratory"; RSVP to Prof. Aiken, also envelope
Box 1, Folder 19
Letter to Hopper from C.B. Tompkins, 21 January 1947. Retained by
mathematics in envelope written by Hopper.
Box 1, Folder 19
Badge of Grace Hopper: 2 in blue metal circle Cruft Laboratory, Harvard
University, Staff No. 62
Box 1, Folder 19
Arm Patch, Navy: navy blue field, White eagle, I in diamond, red stripe rating
class: Specialist I, third class.
Box 1, Folder 20
Request from Lt. (jg) Grace Murray HOPPER, USNR, WR (379475) to Officer-in
Charge, BuShips, Computation Project (Howard Aiken) 18 April 1945 request to
wear dress uniform as bridesmaid.
Box 1, Folder 21
Work schedule Mark I, 1945-1946
Box 1, Folder 22
Operating instructions, Problem L,, undated
Image(s)
Box 1, Folder 23
Coding sheets and directory, Mark I,, 1947
Box 1, Folder 24
Mark I Manual, notes on coding,, 1947
Box 1, Folder 25
Envelopes used by Navy Project at Harvard.
Box 2, Folder 1
Proposed Automatic Calculator for Dahlgren Proving Ground, by Howard H.
Aiken, Comdr. USNR, Officer in Charge, and Robert V.D. Campbell, Ensign,
USNR Report No. 13, Bureau of Ships Computation Project Harvard University,
Cambridge, Massachusetts, November 1944.
Box 2, Folder 2
Mark II coding sheets (1) Problem Sheet PRNC-NPG-68 (Rev. 12-49) Navy-
DPPO PRNC, WASH., D.C. (4 copies) could do 30 lines of coding (2) an earlier
version of the coding sheet (1 copy) could do 60 lines of coding
Box 2, Folder 3
Layout of Mark II Original blueprint drawing by L.C.K., 16984
Box 2, Folder 4
Description of a Relay Calculator [Mark II Manual] by the Staff of the
Computation Laboratory; Harvard University Press, Cambridge, Massachusetts,
1949, Volume XXIV of the Annals of the Computation Laboratory.
Box 2, Folder 5
Mark III: Number transfer circuits
Return to Table of Contents
Series 2: Photographs of MARK II
Grace Murray Hopper Collection
NMAH.AC.0324
Page 9 of 38
Series 2: Photographs of MARK II, 1948
Box 2, Folder 6
Mark II Manual
Box 2, Folder 7
(1) AA 964 General View of the Calculator Frontispiece
Box 2, Folder 7
(2) AA 965 Main Control Board and Wings
Box 2, Folder 7
(3) Floor Plan of the Calculator
Image(s)
Box 2, Folder 7
(4) AA 955 Operator's Table and Printers
Box 2, Folder 7
(5) AA 1000 Cam Unit
Box 2, Folder 7
(6) 8 January 1948 Tape Preparation Table
Box 2, Folder 7
(7) March 1948 Relays: latch type below
Box 2, Folder 7
(8) Cam Unit: details of cam-controlled
Box 2, Folder 7
(9) Cam Unit: rear view showing arc suppression circuits and drive motor
Box 2, Folder 7
(10) 8 January 1948 Control Panel: detail showing read-out lights
Box 2, Folder 8
(11) Sequence Mechanism and Roller Panel
Box 2, Folder 8
(12) 8 January 1948 Switches: left side of calculator [constants]
Box 2, Folder 8
(13) Interpolators
Box 2, Folder 8
(14) 8 January 1948 Functional Tape Preparation Unit
Box 2, Folder 8
(15) 8 January 1948 Tape Reading and Tape Punching Mechanisms
Box 2, Folder 8
(16) 8 January 1948 Control Tape Preparation Unit
Box 2, Folder 8
(17) Sequence Mechanism: detail showing sensing pins and control tape
Box 2, Folder 8
(18) Main Control Board: rear view showing sequence mechanisms
Box 2, Folder 8
(19) Interior of Relay Cubicle
Box 2, Folder 8
(20) Sequence Mechanism
Box 2, Folder 9
(21) Sequence Mechanism: interior view
Box 2, Folder 9
(22) Operating, Panel
Box 2, Folder 9
(23) 8 January 1948 Test Panels A and B