{
  "slug": "why-the-punch-card-programmed-machines",
  "version": 1,
  "layout": "flow",
  "nodes": [
    {
      "id": "n1",
      "type": "document",
      "label": "Pattern Design",
      "x": 58,
      "y": 52,
      "w": 162,
      "h": 162,
      "detail": "desired output"
    },
    {
      "id": "n2",
      "type": "punch-card",
      "label": "Punched Card",
      "x": 272,
      "y": 52,
      "w": 82,
      "h": 82,
      "detail": "hole = instruction"
    },
    {
      "id": "n3",
      "type": "assembly-line",
      "label": "Card Reader",
      "x": 272,
      "y": 162,
      "w": 82,
      "h": 82,
      "detail": "senses holes"
    },
    {
      "id": "n4",
      "type": "store",
      "label": "Machine Output",
      "x": 272,
      "y": 272,
      "w": 82,
      "h": 82
    }
  ],
  "relationships": [
    {
      "from": "n1",
      "to": "n2",
      "label": "encoded as"
    },
    {
      "from": "n2",
      "to": "n3",
      "label": "fed into"
    },
    {
      "from": "n3",
      "to": "n4",
      "label": "drives"
    }
  ],
  "summary": "A pattern of holes in a card encodes machine instructions; the reader senses each hole to drive output.",
  "mechanism": "punched-hole-machine-instruction",
  "fig": "FIG. / THE HOLE IN THE CARD THAT BECAME AN INSTRUCTION",
  "animation": {
    "style": "assemble",
    "duration": 700,
    "stagger": 60
  },
  "presentation": {
    "style": "vignette",
    "hero": "n2",
    "support": [
      "n1",
      "n3"
    ],
    "icon": "punch-card",
    "label": "Punched Card",
    "tilt": 0
  },
  "illustration": {
    "concept": "Large punch card with holes pattern on left feeds into reading machine; output pattern of active threads emerges on the right side",
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