1960’s-70’s automated-machinery cards collections computer computer-punch-cards data-encoding data-input data-output data-processing-industry data-storage decks-of-cards digital-data early-digital-computers flexible-write-once-medium format holes mainframe-data-processing now-obsolete once-common paper paper-ephemera predefined-positions punch-card punched-card retro specialized stiff-paper storage-medium tabulating vintage bar chart business chart color chart colored chart data data chart diagram finance graphic pie chart report abstract audio-tape cassette color colored colour coloured computer-data-tape data-tape-cassette housing information light magnetic mini outdated outmoded perspectives record Recording shiny small spools storage store storing surface surfaced surfaces tape-cassette texture textured textures wind winding blank blank disc cd CDR cdrw computers data transfer disc dvd DVDr dvdrw empty plastic recordable round