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contex_b [2020/09/07 15:44] clodoveu |
contex_b [2020/09/07 15:52] (current) clodoveu |
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After cleaning | After cleaning | ||
- | {{ http://www.dcc.ufmg.br/~clodoveu/files/Images/Contex-model-B/contex-1.png?500 | Contex model B}} | + | {{ http://www.dcc.ufmg.br/~clodoveu/files/Images/Contex-model-B/contex-1.jpg?500 | Contex model B}} |
Serial number | Serial number | ||
- | {{ http://www.dcc.ufmg.br/~clodoveu/files/Images/Contex-model-B/contex-2.png?500 | Contex model B}} | + | {{ http://www.dcc.ufmg.br/~clodoveu/files/Images/Contex-model-B/contex-2.jpg?500 | Contex model B}} |
Inside view | Inside view | ||
{{ http://www.dcc.ufmg.br/~clodoveu/files/Images/Contex-model-B/contex-3.png?500 | Contex model B}} | {{ http://www.dcc.ufmg.br/~clodoveu/files/Images/Contex-model-B/contex-3.png?500 | Contex model B}} | ||
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+ | Bottom view -- notice the five blades for the keys in each column, arranged as a fan | ||
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+ | {{ http://www.dcc.ufmg.br/~clodoveu/files/Images/Contex-model-B/contex-4.png?500 | Contex model B}} | ||
**More about this machine** | **More about this machine** | ||
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[[http://public.beuth-hochschule.de/hamann/contex/co-b/index.html | An operations description, including an explanation on subtraction]] | [[http://public.beuth-hochschule.de/hamann/contex/co-b/index.html | An operations description, including an explanation on subtraction]] | ||
- | [[https://archive.org/details/burr_instr/page/n9 | Instructions for Operating the Burroughs Calculator. 36 page booklet]] |