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Summary
| Description |
English: A Chinese Abacus |
| Date | |
| Source | Own work |
| Author | Dave Fischer |
La primera referencia que se encuentra en la historia de un sistema de cálculo basado en un "aparato", es el ábaco, en el año 2500 a.C. en China. Ya entonces se utilizaban aparatos capaces de realizar cálculos. El aparato en cuestión era capaz de contar y almacenar datos (aparece el concepto de almacenaje y asociado a él el de memoria).
El sistema en cuestión está formado por varios ejes (que definen la capacidad de conteo de la máquina) y cada eje tiene varias cuentas o fichas, que sirven para representar los números del 0 al 9.
En el primer eje se representan las unidades, en el segundo las decenas, en el tercero las centenas, en el cuarto las unidades de millar etc.. (FGOM)
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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. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 05:14, 9 October 2008 | | 2,588 × 1,700 (457 KB) | Shieldforyoureyes | {{Information |Description={{en|1=A Chinese Abacus }} |Source=Own work by uploader |Author=Shieldforyoureyes Dave Fischer |Date=2008-10-08 |Permission= |other_versions= }} <!--{{ImageUpload|full}}--> |
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