Caption: This is a punch card such as was used to enter Fortran programs into the mainframe system at the University of Missouri–Rolla in the late 1970s. The beveled corner on the upper left ensured that all cards were oriented the same way.
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I was showing my old college calculus book to my son and found several of these in the pages – we would take stacks of them from the keypunch room to use as note cards and bookmarks. I scanned the picture and claim no rights to it. Kbh3rd
This object is not a creative work and therefore not subject to copyright.
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Ja, właściciel praw autorskich do tej pracy, udostępniam ją jako własność publiczną. Dotyczy to całego świata. W niektórych krajach może nie być to prawnie możliwe, jeśli tak, to: Zapewniam każdemu prawo do użycia tej pracy w dowolnym celu, bez żadnych ograniczeń, chyba że te ograniczenia są wymagane przez prawo.
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Dodaj jednolinijkowe objaśnienie tego, co ten plik pokazuje
La foto raffigura una scheda utilizzata per inserire programmi Fortran nei sistemi mainframe degli anni '70. L'angolo tagliato in alto a sinistra serviva a controllare che tutte le schede fossero orientate nello stesso modo.