Exam (elaborations)
COM 2400 Final Exam- WMU
- Module
- 2400 Final Exam Study Guide
- Institution
- 2400 Final Exam Study Guide
COM 2400 Final Exam- WMU
[Show more]
Seller
Follow
Content preview
COM 2400 Final Exam- WMUDefinition of Communication - ANS-Communication at a distance
Telecom in Pre-Electricity - ANS-Pony express, drums, smoke signals, semaphore flags
Shannon-Weaver Model - ANS-Message from a sender is encoded into a medium and
the encoded message is sent out through a channel to a receiver
Telegraph - ANS-Distance writer
Telegraph speed - ANS-Speed of light, 186,000
How the telegraph works - ANS-Wire between two places, broke up a stady flow of
electronic current in different sequences by pressing down a lever
Morse Code - ANS-Dots and dashes, used for telegraph
Telegraph Inventor - ANS-Samuel Morse
Needle Telegraph - ANS-needle points to letters, created by Charles Wheatstone and
William cooke
First Telegraph Network - ANS-First telegraph between Baltimore and DC
Importance of networks - ANS-Devices are worthless without being connected to other
devices
Western Union - ANS-Founded in 1851, monopoly over telegraph
Submarine Telegraph - ANS-Wires under ocean, using Gutt Percha sap to insulate
wires, Promoted by Great Britain to connect to colonies
Atlantic Cable - ANS-Cyrus Field- Us to Europe in 1866
Wire Services - ANS-New agencies, wire news to smaller local newspapers
Examples of Wire Services - ANS-Havas, Reuters, Associated Press
, How a Telephone Works - ANS-Sound energy from the human voice is converted into a
corresponding electric current. Electric current travels through the wires, than is
converted back into sound on the other end
Telephone System - ANS-Each subscriber connected to a central switchboard,
telephone operators mans that switchboard to connect people to one another
Common Carrier - ANS-Service is provided to the public on a nondiscriminatory basis
Telephone Inventors - ANS-Alexander Graham Bell and Thomas Watson; Elisha Gray
worked on a similar invention
Gardiner Green Hubbard - ANS-Funded Alexander Bell- went to patent office to register
the invention an hour before Elisha Gray did
Western Union & Telephone - ANS-Bell and Hubbard wanted to sell invention to
Western Union, but they refused. Later they tried to use Elisha Gray's invention and
were sued by Bell.
Western Electric - ANS-AT&T's manufacturing company
Bell Telephone Labs - ANS-Research and development for AT&T
AT&T Founding - ANS-Started as a long-distance service for Bell Telephone Company-
AT&T became the major company in 1901
Telephone Monopoly - ANS-AT&T held a monopoly over telephones by buying out other
companies and refusing to connect
Theodore Vail and Universal Service - ANS-Head of AT&T in 1907, believed telephone
should be one system, one policy, universal service
Break up of AT&T 1913 - ANS-1913, company went to court told to stop anti-competitive
pratices
Modified Final Judgement 1984 - ANS-AT&T in court again, all telephone services were
separated into local or long distance, AT&T forced to keep just long distance and
divulge Baby Bells
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller denicetho. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £7.16. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67096 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now