VoIP and Babbage’s Analytical Engine: what they have in common

1. Step 1. VoIP — evolved from — Telephone. Telephony over IP.
2. Step 2. Telephone — uses — Telephone exchange. Connecting subscribers.
3. Step 3. Telephone exchange — has part — Relay. Relay switching.
4. Step 4. Relay — is part of — Harvard Mark I. The Mark I was electromechanical, built from relays.
5. Step 5. Harvard Mark I — was inspired by — Babbage’s Analytical Engine. Howard Aiken named Babbage’s work as the source of his idea.

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