The idea of storing data on punched cards
was taken up in the 1930s by Thomas J.
While there is considerable expense involved in making a change from written to punched cards
, the cost of installing the new system should be offset by the saving in clerk hire in from three to five years.
If you had saved important business information all these years on punched cards
, you might as well fold, spindle and mutilate them; you'd never find an easy way to retrieve the data.
This includes punched cards
, magnetic tapes, disks and other machine-sensible data used for recording, consolidating and summarizing accounting transactions and records within a taxpayer's ADP system.
Once measured by the number of punched cards
in a file, today's data are sometimes measured in trillions of bytes.
Tenders are invited for Supply and installation of 120 hook jacquard with accessories and punched cards
for saree design
History enthusiast Essinger tracks the evolution of Jacquard's machine, a set of punched cards
that directed patterns produced on silk looms, finding that Jacquard adapted (but did not invent) the system primarily to corner the silk weaving market.