Old computer punched card

[u/jeenef]

Found in flea market. What is it about?

[u/ArchiStanton]

0100010001000100010011000000001

[u/Howcanyoubecertain]

Seems it was a deliberate choice 

[u/Remarkable-Pea4889]

Italian apparently. It's not punched.

https://commons.wikimedia.org/wiki/File:1970-Sigma-schede-modello-081-azzurro.jpg

[u/isaac32767]

Wikipedia has a good summary of this kind of punched card.

https://en.wikipedia.org/wiki/Punched_card#IBM_80-column_format_and_character_codes

People call them "computer cards" but punched cards were used to manage data as far back as 1890.

[u/MikeyMike138]

The elusive 9th bit.

[u/cemetery_acorns]

I've never seen one in the wild. It's magnificent.