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[Source](https://commons.m.wikimedia.org/wiki/File:H96566k.jpg "Permalink to File:H96566k.jpg - Wikimedia Commons")
# File:H96566k.jpg - Wikimedia Commons
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[H96566k.jpg][10] ‎(740 × 583 pixels, file size: 89 KB, MIME type: image/jpeg)
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| DescriptionH96566k.jpg |
**English:** **The First "Computer Bug"** Moth found trapped between points at Relay # 70, Panel F, of the Mark II Aiken Relay Calculator while it was being tested at Harvard University, 9 September 1947. The operators affixed the moth to the computer log, with the entry: "First actual case of bug being found". (The term "debugging" already existed; thus, finding an actual bug was an amusing occurrence.) In 1988, the log, with the moth still taped by the entry, was in the Naval Surface Warfare Center Computer Museum at Dahlgren, Virginia, which erroneously dated it 9 September _1945_. The Smithsonian Institute's National Museum of American History and other sources have the correct date of 9 September _1947_ (Object ID: 1994.0191.01). The Harvard Mark II computer was not complete until the summer of 1947. **Removed caption read:** Photo # NH 96566-KB First Computer "Bug", 1945
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| Date | 9 September 1947 |
| Source | U.S. Naval Historical Center Online Library Photograph [NH 96566-KN][11]
The above link is no longer valid on 13.04.2017, the image available [here][12]. |
| Author | Courtesy of the Naval Surface Warfare Center, Dahlgren, VA., 1988. |
| Permission
([Reusing this file][13]) |
| Public domainPublic domainfalsefalse |
| ----- |
| ![Public domain][14] | _This file is a work of a sailor or employee of the [U.S. Navy][15], taken or made as part of that person's official duties. As a [work][16] of the [U.S. federal government][17], the image is in the [**public domain][18]** in the United States._ |
![Seal of the United States Department of the Navy.svg][19]
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| [This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.][20] | | |
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| Other versions |
<http://americanhistory.si.edu/collections/search/object/nmah_334663>
|
## File history
Click on a date/time to view the file as it appeared at that time.
| ----- |
| | Date/Time | Thumbnail | Dimensions | User | Comment |
| current | [08:02, 21 July 2012][9] | ![Thumbnail for version as of 08:02, 21 July 2012][21] | 740 × 583 (89 KB) | [Cwbm (commons)][22] ([talk][23] | [contribs][24]) | Reverted to version as of 21:04, 23 March 2007; wrong rotation |
| | [05:34, 20 July 2012][25] | ![Thumbnail for version as of 05:34, 20 July 2012][26] | 576 × 740 (89 KB) | [Rotatebot][27] ([talk][28] | [contribs][29]) | Bot: Image rotated by 90° |
| | [21:04, 23 March 2007][30] | ![Thumbnail for version as of 21:04, 23 March 2007][31] | 740 × 583 (89 KB) | [Dcoetzee][32] ([talk][33] | [contribs][34]) | Losslessly remove caption bar with JPEGCrop |
| | [23:02, 24 May 2005][35] | ![Thumbnail for version as of 23:02, 24 May 2005][36] | 740 × 615 (94 KB) | [Roo72][37] ([talk][38] | [contribs][39]) | Photo of first [Computer bug][40], public domain image from [http://www.history.navy.mil/photos/images/h96000/h96566kc.htm US Navy]. From the website: '''Photo #: NH 96566-KN (Color)''' '''The First "Computer Bug"''' Moth found trapped between points at |
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## File usage on Commons
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* [Grace Hopper][41]
## File usage on other wikis
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* Usage on ar.wikipedia.org
* [هارفارد مارك II][42]
* [تنقيح برمجي][43]
* Usage on ast.wikipedia.org
* [Grace Murray Hopper][44]
* Usage on bg.wikipedia.org
* [Програмна грешка][45]
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* [গ্রেস হপার][46]
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* [Viquipèdia:Efemèrides seleccionades/Setembre][47]
* [Plantilla:Setembre 9][48]
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* [Error de programari][50]
* Usage on cs.wikipedia.org
* [Programátorská chyba][51]
* Usage on de.wikipedia.org
* [9\. September][52]
* [Debugger][53]
* [Programmfehler][54]
* [Grace Hopper][55]
* [Benutzer:Matt1971/Wikipedia intern/Entdecken][56]
* [Benutzer Diskussion:Wissling/Archiv 4][57]
* [Diskussion:Grabungstagebuch][58]
* [Frauen in der Informatik][59]
* Usage on de.wikibooks.org
* [Fortran: Die Programmiersprache][60]
* [Fortran: Druckversion][61]
* Usage on de.wiktionary.org
* [Bug][62]
* [Programmfehler][63]
* Usage on el.wikipedia.org
* [Προγραμματισμός][64]
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* [Computer programming][65]
* [Grace Hopper][66]
* [Software bug][67]
* [List of computer term etymologies][68]
* [Computer][69]
* [Portal:Software testing/Selected picture][70]
* [Portal:Software testing][71]
* [User:Ghaag/Software engineering][72]
* [Book:Software testing][73]
* [Debugging][74]
* [User:Moogsi/List of computer term etymologies][75]
* [User talk:West.andrew.g/Archive 8][76]
* [User:Dawnh223/sandbox][77]
* Usage on en.wikibooks.org
* [Introduction to Software Engineering/Implementation][78]
* [Introduction to Software Engineering/Print version][79]
* [A-level Computing 2009/AQA/Problem Solving, Programming, Data Representation and Practical Exercise/Fundamentals of Programming/Debugging][80]
* [A-level Computing/AQA/Problem Solving, Programming, Data Representation and Practical Exercise/Fundamentals of Programming/Debugging][81]
* Usage on en.wikiquote.org
* [Grace Hopper][82]
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* [Introduction to Computers/Security][83]
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* [Depuración de programas][86]
* [Grace Murray Hopper][87]
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* [Ohjelmointivirhe][91]
View [more global usage][92] of this file.
## Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
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| JPEG file comment | File written by Adobe Photoshop¨ 4.0 |
![][93]
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[ Last edited on 13 April 2017, at 10:14 ][95]
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