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Dead Media

Halloween 2023 Display on obsolete computer and audio/visual media

Quick Statistics

  • First used: 1896
  • Last used: 1980
  • Storage: about 18 bytes (plus whatever's written on the card itself)

A used edge-notched card

This card is from the Herndon Dowling collection and describes a snake from Michigan.

Needle card

A single unused card

This card is unused. It's pre-printed with what each hole or notch means. It is from the Herndon Dowling collection.

Stack of unused edge-notched cards

The clipped corner helped ensure you had all the cards facing the same direction.