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however, very small with only about 500 Bytes or 0.5 Kilobytes (already using both directions). HP invented these cards with the programmable calculator HP-65 in 1974, which was the first of its kind on the market. The necessity of such a storage device - which would be comparable to the later diskette drives or much later USB memory sticks - was that the main memory (RAM) of the calculator was emptied when the device was powered off, hence all program data and application data was lost, unless stored on such a card.
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A magnetic storage card (front and backside) for
Hewlett-Packard (HP) programmable calculators HP-41, HP-65, HP-67, and HP-97. The arrows with numbers 1 and 2 on the left and right edges indicate that the card may be used in both directions in order to use the full storage capacity - which was,
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297:– You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
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If the file has been modified from its original state, some details may not fully reflect the modified file.
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The following pages on the
English Knowledge (XXG) use this file (pages on other projects are not listed):
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303:– If you remix, transform, or build upon the material, you must distribute your contributions under the
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Frontside and backside of a magnetic storage card for
Hewlett-Packard pocket calculators, 1970s/1980s
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I, the copyright holder of this work, hereby publish it under the following license:
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Click on a date/time to view the file as it appeared at that time.
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removed background, horizontal straightening, technical shadow
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removed background, horizontal straightening, technical shadow
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History of video games/Print version/Standardized platforms
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Creative
Commons Attribution-ShareAlike 4.0 International
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79:(2,100 × 1,000 pixels, file size: 805 KB, MIME type:
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Commons is a freely licensed media file repository.
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1226:Knowledge (XXG):Fotowerkstatt/Archiv/2020/Oktober
1623:Flash did not fire, compulsory flash suppression
314:https://creativecommons.org/licenses/by-sa/4.0
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320:Creative Commons Attribution-Share Alike 4.0
244:
8:
280:– to copy, distribute and transmit the work
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267:Attribution-Share Alike 4.0 International
977:94de3339fc747a8a28a6e001fa27a708475047a3
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1413:Date and time of data generation
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291:Under the following conditions:
262:This file is licensed under the
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1737:Date metadata was last modified
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1649:A directly photographed image
619:original creation by uploader
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1387:1/30 sec (0.033333333333333)
426:object of statement has role
358:Items portrayed in this file
1729:Date and time of digitizing
1628:DateTimeOriginal subseconds
1297:Usage on lmo.wikipedia.org
1765:
1322:Usage on www.wikidata.org
1287:Usage on ja.wikipedia.org
1272:Usage on it.wikipedia.org
1257:Usage on fr.wikipedia.org
1247:Usage on es.wikipedia.org
1232:Usage on en.wikibooks.org
1212:Usage on de.wikipedia.org
1197:Usage on ca.wikipedia.org
305:same or compatible license
1713:Geodetic survey data used
1543:Meaning of each component
1516:File change date and time
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100:This is a file from the
1613:Center weighted average
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160:16 March 2018, 15:48:42
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104:. Information from its
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1519:12:56, 27 October 2020
1106:01:01, 27 October 2020
1076:06:00, 27 October 2020
1046:12:01, 27 October 2020
107:description page there
46:Size of this preview:
1600:Maximum land aperture
1490:Horizontal resolution
1732:15:48, 16 March 2018
1482:Number of components
1416:15:48, 16 March 2018
1136:14:54, 16 March 2018
1128:+cropped -background
989:determination method
139:HP magnetic card.jpg
66:2,100 × 1,000 pixels
1498:Vertical resolution
1362:Camera manufacturer
1301:Cartolina magnetica
1281:Cartolina magnetica
286:– to adapt the work
52:Other resolutions:
1667:Auto white balance
1448:Bits per component
454:Wikimedia username
441:author name string
62:1,024 × 488 pixels
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1678:1
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117:.
83:)
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
