File:HP 9100A Calculator 1968 front.jpg
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Summary
[edit]DescriptionHP 9100A Calculator 1968 front.jpg |
HP 9100A calculator was introduced in March 1968 and sold for $4,900. The circuitry was discrete transistors because early integrated circuits consumed too much power. The HP 9100A is about 20 by 19 by 9 inches and weights 40 pounds. Calculator displayed by Robert Rosenbloom at the Vintage Computer Festival. This was held at the Computer History Museum in Mountain View, California, November 2007. Photo by Michael Holley, November 3, 2007. Taken with a Canon PowerShot A630 (1/15 second and F/3.5) with existing light. |
Date | |
Source | Own work |
Author | Swtpc6800 en:User:Swtpc6800 Michael Holley |
Other versions | File:HP 9100A Calculator 1968.jpg |
Licensing
[edit]Public domainPublic domainfalsefalse |
I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 03:58, 30 November 2009 | 1,545 × 1,077 (228 KB) | Swtpc6800 (talk | contribs) | {{Information |Description= HP 9100A calculator was introduced in March 1968 and sold for $4,900. The circuitry was discrete transistors because early integrated circuits consumed too much power. The HP 9100A is about 20 by 19 by 9 inches and weights 40 p |
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Metadata
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot A630 |
Exposure time | 1/15 sec (0.066666666666667) |
F-number | f/3.5 |
Date and time of data generation | 17:59, 3 November 2007 |
Lens focal length | 12.565 mm |
Width | 3,090 px |
Height | 2,155 px |
Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 150 dpi |
Vertical resolution | 150 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop Elements 5.0 Windows |
File change date and time | 19:50, 29 November 2009 |
Exif version | 2.2 |
Date and time of digitizing | 17:59, 3 November 2007 |
Image compression mode | 3 |
APEX shutter speed | 3.90625 |
APEX aperture | 3.625 |
APEX exposure bias | 0 |
Maximum land aperture | 3.625 APEX (f/3.51) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Color space | sRGB |
Focal plane X resolution | 11,412.587412587 |
Focal plane Y resolution | 11,439.252336449 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |