Welcome to Multimedia Fundamentals

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Welcome to Multimedia Fundamentals!

• Karen Popovich
• k.popovich_at_csuohio.edu
• Yahoo Messenger popovich_karen

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Todays Agenda

• Course syllabus, class procedures, etc
• Introduction to Multimedia
• Introduction to Internet
• Lab time Introduction to the CD
• Establish Yahoo Messenger account

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Who needs to know about Multimedia?

• Anyone who plans to learn, teach, work, play,
  govern, serve, buy or sell in the information
  society would be at a great disadvantage if he or
  she were not familiar with multimedia technology.
  Who needed to know how to read books after the
  printing press was invented?

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How is Multimedia changing the world?

• Mergers Alliances (MSNBC.com, Time Warner, etc)
• Telecommuting
• Home shopping
• Business Advertising
• Electronic Publishing
• Teaching and Learning
• Mass Media

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What is a multimedia PC?

• A multimedia PC must have a CD-ROM (preferably
  DVD), enough RAM to interact with media in real
  time (128 MB) and audio drivers supporting 16
  and 32 bit waveform audio recording. It should
  have MIDI sound synthesis, MPEG movie playback
  capability and a Pentium IV class CPU with a
  clock speed of at least 1.0 GHz.
• Obviously, standards are changing monthly, but
  the above specifications should be minimally
  acceptable for the next six months or so.
• Each of the features listed are discussed in the
  textbook.

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Pondering Questions

• Give examples of how multimedia has affected (a)
  the nation as a whole, (b) your local community,
  and (c) your personal life.
• In your chosen career or profession, would
  telecommuting be appropriate? How would it help
  or hinder your work?
• This chapter described how multimedia is changing
  the world through mergers and alliances,
  telecommuting, home shopping, electronic
  publishing, and computer-based learning. How else
  do you see multimedia changing the world?
• Compare the advantages and disadvantages of
  online shopping as you see them. What impact does
  online shopping have on traditional stores and
  shopping malls?

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Pondering Questions

• Think of an example showing how a computer helped
  you learn something. What was the subject matter?
  What role did the computer play? Did you learn
  better because of the computer? Why or why not?
• Of all the different kinds of occupations you can
  think of, which ones need multimedia the most?
  The least? What is your chosen occupation? Why
  will you need to know about multimedia to do well
  in your line of work?
• Find out the domain name of the computer network
  at your school or place of work. If you have an
  e-mail address on that network, the domain name
  will be the part of your e-mail address after the
  _at_ sign. For example, if your e-mail address is
  santa.claus_at_toymakers.northpole.com, the domain
  name is toymakers.northpole.com.

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What is the Internet?

• The Internet is a network of millions of
  computers that follow the Internet Protocol (IP)
• Because actual Internet addresses consist of four
  numbers separated by periods which would be quite
  difficult to remember, the Domain Name System
  (DNS) was invented to permit the use of
  alphabetic characters instead of numbers.
• This permits users to address, for example, the
  Library of Congress as www.loc.gov instead of
  having to remember 160.111.7.240
• The Internet also includes ftp//, gopher,
  usenet, archie and other services not usually
  considered part of the World Wide Web

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What Are Domains and Subdomains?

• Every computer on the Internet has a unique
  Internet Protocol (IP) address.
• The numbers range from 0 to 255. The smallest
  address is 0.0.0.0 and the largest is
  255.255.255.255.
• To make IP addresses easier for human beings to
  remember, a Domain Name System (DNS) was invented
  to permit the use of alphabetic characters
  instead of numbers.

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What Are Domains and Subdomains?

• Domain names have the format
• hostname.subdomain.top-level-domain
• In the United States, top-level domains normally
  consist of one of the following
• .edu educational
• .com commercial
• .gov government
• .mil military
• .net network support centers
• .org other organizations

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What is the World Wide Web?

• The World Wide Web is a networked hypertext
  system that allows the easy sharing of documents
  and multimedia files over the Internet. It was
  developed at the European Particle Physics Center
  (CERN) in Geneva, Switzerland
• When the Web started, it was purely text based.
  After the National Center for Supercomputer
  Applications (NCSA) released the easy-to-use
  graphical interface named Mosaic, the Web became
  increasingly popular.

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(No Transcript)
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What Are the Internet Services?
An Internet Protocol (IP) connection provides you
with access to Internet services all over the
world.
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Electronic Mail
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Listserv
Listservs distribute messages to people whose
names are on an electronic mailing list.
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USENET Newsgroups
USENET Newsgroups organize information according
to a hierarchy of topics.
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Chat
A chat in progress on the Internet.
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Videoconferencing
This Figure shows how videoconferencing enables
users to see and hear each other over the
Internet.
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FTP (File Transfer Protocol)
FTP transfers files over the Internet from one
computer to another.
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Multimedia Streaming
Broadcasters are using multimedia streaming to
distribute real-time content over the Internet.
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What Is Client-Server Computing?

• The term client-server computing refers to the
  manner in which computers exchange information by
  sending it (as servers) and receiving it (as
  clients).

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Brief History of the Internet

• The Internet originated when the Advanced
  Research Projects Agency (ARPA) of the United
  States Department of Defense began a network
  called ARPANET in 1969.

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Brief History of the Internet

• During the 1970s, universities began using the
  Internet Protocol to connect their local networks
  to the ARPANET. Access to the Pentagons
  computers on the ARPANET was tightly controlled,
  but the university computers were permitted to
  communicate freely with one another.

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Brief History of the Internet

• Because the IP software was public-domain, and
  the basic technology made joining the network
  relatively simple, the Internet became more
  diverse.
• Diversity posed security risks, however, and in
  1983 the military segment broke off and became
  MILNET.

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Brief History of the Internet

• In 1986, the National Science Foundation (NSF)
  began the NSFNET, a backbone that connected the
  nations five supercomputer centers at high
  speed.
• In 1991, NSF lifted the restriction that
  prohibited commercial entities from using the
  backbone.

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Brief History of the Internet

• During the late 1990s, usage of the Internet
  exploded as costs declined, access increased, and
  new companies such as amazon.com, ebay.com, and
  yahoo.com pioneered the commercial potential of
  the Internet.

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U.S. Web Advertising
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Lab Time!

• Review CD
• Create Yahoo Messenger ID
• Taking a look at multimedia sites