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Summary
| Description |
English: Magnetic card (c. 1980) as used in the IBM MC Selectric typewriter and IBM MC Selectric Composer. Compatible products were available from Memorex and Scotch (3M).
The pair of longitudinal wide parallel bars are abrasion from the friction rollers that moved the card relative to the reader, and ejected the card on demand. The number (2564 in this example) is not a product code but a random code so that a specific card could be identified. Image (and ruler) were scanned from a physical card on 2007-12-12.Español: Tarjeta magnética (c. 1980) como la usada en las IBM MC Selectric y IBM MC Selectric Composer. Productos compatibles estaban disponibles de Memorex y Scotch (3M). |
| Date | |
| Source | http://en.wikipedia.org/wiki/File:IBM_Magnetic_Card.jpg |
| Author | Pointillist |
| Permission (Reusing this file) |
GNU Free Documentation License, Version 1.2 |
Licensing
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
This file is licensed under the Creative Commons Attribution 3.0 Unported license.
Attribution: Pointillist
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:49, 25 September 2009 | | 557 × 280 (63 KB) | Piero71 | {{Information |Description={{en|1=Magnetic card (c. 1980) as used in the IBM MC Selectric typewriter and [[en:IBM_Selectric_typewriter#Selectric_Composers|IBM MC Selectric Composer |
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