Coin and hollerith tabulator: what they have in common

1. Step 1. Coin — evolved into — Paper money. A replacement for metal money.
2. Step 2. Paper money — evolved into — Payment card. The next form of money.
3. Step 3. Payment card — has part — Integrated circuit. An EMV chip.
4. Step 4. Integrated circuit — is part of — Mainframe. The hybrid circuits of the System/360.
5. Step 5. Mainframe — evolved from — Hollerith tabulator. IBM grew out of Hollerith’s company.

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