File:7AK7 vacuum tubes.jpg
Original file (2,448 × 3,264 pixels, file size: 2.17 MB, MIME type: image/jpeg)
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Summary edit
Description7AK7 vacuum tubes.jpg |
English: 7AK7 vacuum tubes in a UNIVAC I computer. The 7AK7 is a pentode vacuum tube (thermionic valve) designed for service in electronic computers. This computer operated at the Batelle Institute in Frankfurt (at the time W. Germany) from 19th October 1956 until 1963, and is exhibited at the Deutsches Museum in Munich, Germany. |
Date | |
Source | Own work |
Author | Diomidis Spinellis |
Camera location | 48° 07′ 40.26″ N, 11° 35′ 18.95″ E | View this and other nearby images on: OpenStreetMap | 48.127850; 11.588597 |
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UNIVAC I Factronic Computer Remington Rand Inc., Eckert-Mauchly Division, Philadephia, Pennsylvania, 1956
Donor: Remington Rand GmbH, Frankfurt am Main Deutsches Museum Inv. Nr. 75684
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 21:12, 18 July 2019 | 2,448 × 3,264 (2.17 MB) | Diomidis Spinellis (talk | contribs) | User created page with UploadWizard |
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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.
Camera manufacturer | SAMSUNG |
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Camera model | GT-I9301I |
Exposure time | 1/17 sec (0.058823529411765) |
F-number | f/2.4 |
ISO speed rating | 200 |
Date and time of data generation | 13:14, 10 July 2019 |
Lens focal length | 2.93 mm |
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Latitude | 48° 7′ 40.26″ N |
Longitude | 11° 35′ 18.95″ E |
Altitude | 0 meters above sea level |
Width | 3,264 px |
Height | 2,448 px |
Orientation | Rotated 90° CCW |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | I9301IXCSAQE1 |
File change date and time | 13:14, 10 July 2019 |
Y and C positioning | Centered |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 13:14, 10 July 2019 |
Meaning of each component |
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APEX shutter speed | 4.05 |
APEX aperture | 2.52 |
APEX brightness | 0.65 |
APEX exposure bias | 0 |
Maximum land aperture | 2.53 APEX (f/2.4) |
Metering mode | Center weighted average |
Light source | Unknown |
Flash | Flash did not fire |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
Scene type | A directly photographed image |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Focal length in 35 mm film | 31 mm |
Scene capture type | Standard |
GPS time (atomic clock) | 10:40 |
GPS date | 10 July 2019 |
GPS tag version | 0.0.2.2 |