Re:Arduino reads punched cards for cloud computing
by zokier on Sunday June 18, 2023 @09:25AM
(#36380083)
That is just EBCDIC character encoding scheme. Its still ones and zeroes in the end. You can see this in this example card on Wikipeidas article on EBCDIC https://en.wikipedia.org/wiki/EBCDIC#/media/File:Blue-punch-...
Re:Arduino reads punched cards for cloud computing
by PaulHoule on Sunday June 18, 2023 @11:08AM
(#36380952)
Where I work we have some old card decks that are in “column binary” format that occasionally we have to convert to some more modern format.
http://ropercenter.cornell.edu/data-archaeology-uncovering-p...
https://documentation.sas.com/doc/en/lrcon/9.4/p0wq84yjj4qkt...
That's not quite correct. There were twelve rows: 0-9, 11 and 12. A hole in row 0 was a zero, etc. Holes in 12 + 1 was an 'A', 11 + 1 was 'J', and 0 + 2 was 'S'. Other combinations were for punctuation.