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File:Blue-punch-card-front-horiz top-char-contrast-stretched.png

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Original file (2,232 × 1,004 pixels, file size: 4.42 MB, MIME type: image/png)

Summary

Description
English: An IBM 5081-style punched card showing the encoding of the 1964 EBCDIC Latin character set, including numerals 0-9, upper-case letters A-Z, and special characters. The contrast of the human-readable strip at the top of the card has been artificially enhanced.
Date 18:41, 10 March 2011 (UTC)
Source The same image, with lesser contrast at the top
Author Nikevich (talk) 18:41, 10 March 2011 (UTC)
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(Reusing this file)
Deduced from existing text. I declare that this has the same permission/licensing as the unmodified image.
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Licensing

Public domain This work has been released into the public domain by its author, Gwern at English Wikipedia. This applies worldwide.
In some countries this may not be legally possible; if so:
Gwern grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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4,637,515 byte

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2,232 pixel

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Date/TimeThumbnailDimensionsUserComment
current16:43, 24 May 2020Thumbnail for version as of 16:43, 24 May 20202,232 × 1,004 (4.42 MB)Frank Klemmenhanced contrast inverted similar color of the enhacned part as the rest of the card
18:41, 10 March 2011Thumbnail for version as of 18:41, 10 March 20112,232 × 1,004 (3.27 MB)Nikevich{{Information |Description = Processed image of the blue EBCDIC card, with enhanced contrast of the printed characters at the top. |Source = The same image, with lesser contrast at the top |Date = ~~~~~ |Author = ~~~~

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