The early history of data networks
Most of us would consider the emergence of large-scale communication networks to be a 20th century phenomenon. Yet, the first nationwide data networks were built not in this century but almost 200 years ago. Well before the electromagnetic telegraph was invented, many countries in Europe had fully operational data communications systems, with altogether close to 1,000 network stations.
This book gives a fascinating glimpse of the many documented attempts throughout history to develop effective means for long-distance communications. The oldest attempts date back to millennia before Christ, and include ingenious uses of homing pigeons, mirrors, flags, torches, and beacons.
The book then shows how Claude Chappe, a French clergyman, started the information revolution in 1794 with the design and construction of the first true telegraph network in France. Another chapter contains the first complete English translation of a remarkable document on the design of optical telegraphs networks, originally written in 1796 by the Swedish nobleman Abraham Niclas Edelcrantz.
What people are saying - Write a review
We haven't found any reviews in the usual places.
One Torches and Beacons
Two Claude Chappe
Three Abraham N Edelcrantz
9 other sections not shown
Abraham Chappe Academy Akrell alphabet arms Aschoff attention signal beacon Belloc Bergstrasser British Brulon called century Chappe's Chappe's design Claude Chappe clocks code table Coll column combinations communication construction control signals correspondence couriers described device distance Dvornik Edelcrantz electrical telegraph encoding experiments Figure fire signals flag signaling France French telegraph Giambattista della Porta graph grid Grisslehamn Gustaf heliographs Helsingborg Hennig Hooke horizontal Ignace Chappe indicate intermediate stations invention King Koblenz later letter light Lille machine messengers method miles minutes number of signals objects optical telegraph optical telegraph line Paris Paris to Lille placed Polybius position possible proposal received referred repeated reproduced Royal semaphore telegraph sent shutter telegraph shutters speech signal speed Stockholm Sweden Swedish Swedish Telegraph tele Telegraph Administration telegraph design Telegraph Institution telegraph operators telegraphists telescope terminal stations tion torches transmission transmitted visible visual angle wire