Category:IBM 421

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IBM 421

early computing device

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Instance of

Accounting machine

Manufacturer

IBM

Authority file
Q5968670
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Media in category "IBM 421"

The following 5 files are in this category, out of 5 total.

Barra di caratteri per la stampante della macchina tabulatrice IBM 421 - Museo scienza tecnologia Milano D1174.jpg 1,280 × 797; 542 KB
Memoria elettronica per tabulatrice IBM 421 - Museo scienza tecnologia Milano D1172.jpg 1,280 × 930; 750 KB
MNACTEC keyboards (30316694693).jpg 4,032 × 3,024; 2.9 MB
MNACTEC keyboards (30756052540).jpg 4,032 × 3,024; 3.43 MB
Piastra di stampa per la stampante della macchina tabulatrice IBM 421 - Museo scienza tecnologia Milano D1175.jpg 1,280 × 889; 776 KB

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