Tear de Bouchon e programmable logic controller: o que têm em comum

1. Passo 1. Tear de Bouchon — evoluiu para — Jacquard loom. Jacquard combined and refined the ideas of Bouchon, Falcon and Vaucanson.
2. Passo 2. Jacquard loom — inspirou — Máquina analítica de Babbage. Babbage borrowed Jacquard’s punched cards directly for entering operations and data; Ada Lovelace compared the machine to the Jacquard loom.
3. Passo 3. Máquina analítica de Babbage — inspirou — Harvard Mark I. Howard Aiken named Babbage’s work as the source of his idea.
4. Passo 4. Harvard Mark I — tem como parte — Relay. The Mark I was electromechanical, built from relays.
5. Passo 5. Relay — evoluiu para — Programmable logic controller. It replaced relay cabinets.

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