Loading presentation...

Present Remotely

Send the link below via email or IM


Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.


Module 3 - Electronic Era 1840's - 1990's

How and why people use information in the electronic era.

Danielle Leuthauser

on 7 March 2011

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Module 3 - Electronic Era 1840's - 1990's

Electronic Era
1840's - 1990's Advancements from 1840 - 1860 "The second communications revolution of the long ninteenth century was set in motion in the 1840's with the rapid expansion of the railroad and the commercialization of the telegraph." 1840 - Samuel F.B. Morse and Alfres Vail were issued a
patent for the first practical telegraph based on elecromagnets.
Relays were used every ten miles to repeat the signals in Morse code. 1844 - Telegraph industry in the United States takes off,
with a 40 mile line between Washington and Baltimore. 1853 - 23,000 miles of telegraph wire strung Advancements from 1861 - 1900 1861 - Transcontinental Telegraph line from Omaha to SanFransico was strung. 1866 - Telegraph cable strung under the Atlantic Ocean connecting the United States and Great Britain. The telegraph lines proved invaluable during the Civil War. Both the Union and the Confederate armies depended on these lines to relay information. Advancements from 1901 - 1930 Advancements from 1931 - 1990 1865 - Over 83,00 miles of wire in the USA were dedicated to the telegraph. Development of the telephone begins. 1840's - The New York Associated Press was formed. Reporters were granted special rates and preferential access to telegraph wires. Railroads used telegraphs to prevent accidents, coordinate operations and gather information to monitor traffic flow. 1876 - Alexander Graham Bell patents for a
device to transmit the human voice by wire
(the first telephone). 1890's - Almond Strowger intoduced automatic switching. 1920's - The first dial
telephones were introduced. 1915 - Telephone service connected
NY and SanFrancisco, making
telephony a continental service. 1895 - The Bell telephone was out
of the reach of the working poor.
Costing $4.66 a month/$66 a year. 1912 - 30% of farm households had at
least some form of telephone service. 1941 - FM mobile radio became
standard throughout the Country. In 1876 it cost $2 to send a ten-word telegram between New York and San Francisco compared to 3 cents to send a letter. Telegrams were mostly business-related. 1954 - Color television was introduced, but took ten years to gain in popularity over the radio and black-and-white television. 1906 - The first radio program
broadcast went on air. 1920 - The first radio news was broadcasted. Radio became a staple in American homes. By 1927 radios were priced from $82.75 - $2,000 compared to a vehicle price of $600. 1928 - Black - and - white television sets
were sold commercially in the United States. 1947 - Motorola introduced the VT-71
television for $189.95, making tv affordable
for millions of Americans. 1936 - The BBC broadcasts the worlds
first regular television program. 1990- The circulation of daily newspapers continues
to decline due to the popualrity of radio and television. 1981 - IBM Introduced
the first personal computer 1940 - The first regularly scheduled
news - braodcasted on television Use/Result of
Information Technology New/Improved
Information Technology Cost and Diffusion of
Information Technology Result: Eliminated the need for operators. Result: Leaving the Pony Express basically obsolete. The number of television programs continued to grow.
Television because a significant part of American culture
with its influential shows that brought cultural issues to the forefront. 1989 - The World Wide Web
is developed. This technology grows
quickly and by 1996, more than 25 million
computers had been connected to the internet.
Full transcript