From Smoke Signals to the Internet: The History of Communications Infrastructures

History of Communications

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Presentation Outline

Muscle Powered Communications

Muscle Powered Communications

The Pony Express

The Pony Express

Visual Communications

Visual Communications

Fire Beacons

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The Optical Telegraph

The Optical Telegraph

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Scientific Advances

The Electrical Telegraph

The Electrical Telegraph

Dots and Dashes Span the Globe

Dots and Dashes Span The Globe

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Scientific Background

Maxwell the Poet

Wireless Telegraphy

Wireless and Warfare

Barbed Wire Made Audible

Wireless and Warfare

The Zimmermann Telegram

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The Telegraph Learns to Speak

Bell’s Early Telephones

Building the Network

“Ma Bell”

Bell Telephone Equipment

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Making the Ai waves Sing

Scientific Genius of Radio

Commercial Genius of Radio

Early Communications Devices

Seeing at a Distance: Television

Electrical/Mechanical Systems

Forgotten Genius of Television

Philo T. Farnsworth

Vladimir K. Zworykin

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Packet Switching

ARPANet Becomes Internet

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Global Telecom Trade

What Comes Next?

Top Internet Countries

What Comes Next?

What Comes Next?

What Comes Next?