commu - HISTORY OF COMMUNICATION CAVE PAINTINGS Oldest...

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Unformatted text preview: HISTORY OF COMMUNICATION CAVE PAINTINGS Oldest known samples Oldest 18000-15000 BC CAVE PAINTINGS SMOKE SIGNALS SCROLLS, PAPER, PENCIL, PEN PRINTING PRESSES WRITTEN NEWSMEDIA SEMAPHORE TELEGRAPH & TELEPHONE TAPE PLAYER & PHONOGRAPH RADIO & CB TV & VCR FAX & CELLULAR WORLD WIDE WEB INTERNET Cave Paintings Discoveries France & Spain Sahara region of Africa Done in earth colors Red and yellow Mixed with animal fat ? Depicted animals in area SMOKE SIGNALS SCROLLS & PAPER PENCIL AND PEN Dates back to prehistoric times Used throughout history American Indians History is unclear No documented proof ? Scrolls Dead Sea Scrolls (found 1947) Date back to 2 BC Beliefs and practices Jewish and early Christians Middle and dark ages SCROLLS & PAPER pencil, pen PENCIL AND PEN Ancient Greeks & Romans Paper Date back to the year 105 Chinese court official Cai Lun invented it Vegetable fibers--tree bark, rags. Japanese - first publication (770) Nicolas Louis Robert lead used for drawing lines Graphite discovered in 1400’s Pure graphite - England (1564) Rods Mixed clay & graphite- hardness William Monroe invented wooden casing Pen PRINTING PRESSES 4000 BC - Egyptians Printing first used - 8th century Chinese - wood blocks Koreans & Chinese - 11th century Brushes from thin stemmed reed 300 BC - Greeks Reed pen 6 BC - Romans Invented quill pen 19th century metal pen WRITTEN NEWSMEDIA BOOKS, NEWSPAPER, MAGAZINES Books date back to ancient times Publishing started in Europe 15th century Elzevir family Published its first book - 1583 Specialization in publishing 19th century Experiment with movable type First printing press - 1455 latin bible was produced Steam-powered press - 1814 High-speed press - 1847 NEWSPAPER Roman Acta diurna Dates back to 59 BC Advent of printing in 15th cent. Major factor in early development First daily newspaper Daily Courant 1702 Publick Occurrences First newspaper in Am. colonies SEMPAPHORE Semaphore Late 18th cent. Optical telegraph Claude Chappe Visual Telegraphy Claude Chappe (1763-1805) Could Have Been Built Earlier Lacked Telescope First Stations Menilmontant Saint-Martin-du-Tertre (21 Miles) Saint-Martin-du-Tertre First Line Paris to Lille Semaphore System Wooden “T” Horizontal Beam (Regulator) Jointed Arms (Indicator) 196 Different Positions Chappe Code - 92 Positions Diplomatic Dictionary 92 Pages - First Signal 92 Words/Page - 2nd Signal Second Dictionary - Phrases Semaphore System Slowed Development Telegraph No New Technology Calais To Paris 33 Posts, 58 Leagues, 3 Minutes Toulon To Paris 10 Posts, 200 Leagues, 20 Minutes Used Extensively In WW I Still Used - Aircraft Carriers TELEGRAPH First Electric Telegraphs Telegraph (1792) Euston & Camden In London(1837) From Greek tele - far, grahpeic - to write Hans Christian Oersted Used electric current (1819) Samuel Morse Sounding key (1856) Western Union (1856) 40 Years After Chappe 1 Mile Long William F. Cooke Charles Wheatstone 5 Needles & Circuits 6 Wires Printing Devices Morse System Samuel F. B. Morse (1791-1872) Painter Turned Physicist Modern day who ? Baltimore To Washington (1845) Adopted Throughout Europe (1846) International Communication (1854) Morse System Simplicity Simple Mechanical Device Identical Movements Single Code With 2 Elements Short & Long Signals Combinations Of 4 Signals Morse System Manual Transmitter Right Flexible Blade (First Model) Left Jointed Lever Type Reversing Spring Every Letter Of Alphabet 12 + 22 + 32 + 42 = 2 + 4 + 9 + 16 = 31 16 Similarities & Symmetry Telegraph Lines Telegraph Lines First Lines Success Of Telegraph Transmitting Devices Receiving Devices Batteries Transmission Lines Iron Wires - Poor Results Copper Wires - Tempted Thieves Underground Covered w/ Cotton & Pitch Insulating Wires In Suspension Telegraph Lines Ring Insulator (1845) Insulator With Tension Devices (1845) Porcelein Insulator (1860) Telegraph Significance New Occupations Telegraph Significance Produced Numerous Inventions Lightning Rods Cummutators Relays Sound Devices Galvanometers Measuring Instruments Telephone TELEPHONE Robert Hooke Physicists Electrical Engineering First High Tech Occupation Machinery & Electrical Industry Batteries Magnetoelectric Motor Electric Generators “Tis not impossible to hear a whisper a furlong’s distance, it having already been done; and perhaps the nature of the thing would not make it more impossible though that furlong should be ten times multiplied” Telephone Telephone 1876 Alexander Graham Bell Alexander Graham Bell Awarded Patent Based On Hermann Helmholtz’s Work Elisha Gray - Superior Design Teacher Of Deaf Used No External Power Source Still Can Be Used For Short Distances Transmitter & Receiver Identical Electromagnetic Microphone Over-land cables Telephone TAPE PLAYER Trans atlantic cable (1956) Fiber optics Satellites Valdemar Paulsen in 1898 Modern form Invented in Germany in 1930’s Radio programs start in late 1940’s Reel to Reel Cassettes PHONOGRAPH RADIO & C.B. Invented by Edison (1877) Invented by Marconi (1901) First transatlantic signal First radio broadcast (1906) Talking machine Cylinders Discs used (1887) Instead of cylinders Perfected by Emile Berliner Reginald Fessenden David Saroff (1916) Future head of RCA & NBC C.B. RADIO TV Originated in 1940’s Citizens Radio Service Hobby use in 1975 Channels Iconoscope invented in 1923 Vladimir Zworykin Photoelectric cells Cathode-ray tube HDTV F.C.C VCR FAX Invented in post-war Japan Invented by Alexander Bain (1843) Furthered along by John VL Hogin VHS Beta 8 millimeter DAT Early 1900s Early 1950’s - time compression Japan 1970’s - use increased 1980’s- widespread use CELLULAR WORLD WIDE WEB Introduced in 1980’s Cells- geographic areas Frequency Digital service Developed in 1989 European Lab. for Particle Physics CERN, Geneva Timothy Berners-Lee Berners-Lee MIT WWW Consortium Hyperlinks INTERNET Developed in 1973 Universities & Govt. Res. Labs Govt. Res. Early Beginnings Manhattan Project U. of Chicago, Berkely Los Alamos, Oak Ridge ...
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This note was uploaded on 06/12/2011 for the course EGN 3000 taught by Professor Staff during the Spring '09 term at University of South Florida.

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