Stopwatch crown button e hollerith tabulator: o que têm em comum

1. Passo 1. Stopwatch crown button — faz parte de — Stopwatch. A cam starts and resets the hand.
2. Passo 2. Stopwatch — tem como parte — Mainspring. A mainspring.
3. Passo 3. Mainspring — faz parte de — Music box. A mainspring turns the cylinder.
4. Passo 4. Music box — tem como parte — Pinned cylinder. The cylinder’s pins pluck the teeth of the comb.
5. Passo 5. Pinned cylinder — funciona como — Punched card. Pins on a cylinder and holes in a card are two ways of recording a sequence for a machine.
6. Passo 6. Punched card — é utilizado em — Hollerith tabulator. The 1890 census data was encoded on punched cards.

Abrir Evothings