The evolution of the Information Superhighway

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The evolution of the Information Superhighway
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• The internet has been described by some people
  as a development in human communication that
  ranks in importance with the development of the
  printing press, the telephone or the television.

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Introduction To The Internet

• A History of the Internet
• Canadian Internet Connections
• Emerging Careers
• Canadian Technological Advancements
• Wonders of the Internet
• Social Concerns

The Internet!!
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Internet
The Net - is the worlds largest computer network
- the larger a network, the more information it
can offer! The Net is not one network, but a
network of networks, all exchanging information
freely.
London
Sydney
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Wonders of the Internet

• Online Facilities
• Electronic Mail (email)
• On-line Conversation
• Information Retrieval
• Software Distribution

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The History of the Internet

• ARPANET
• (Advanced Research Projects Agency NETwork)
• ArpaNet was a military research network which
  grew out of an experiment in reliable networking
• Linking together the US Department of Defence and
  military research contractors in 1969
• Universities doing military-funded research

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The Birth of the Internet

• One goal of ARPANET was to develop a reliable
  wide-area communications network that could not
  be easily disabled.
• A decentralized network was designed, so instead
  of a wheel configuration, the network looked like
  a web.
• If one aspect of the network became disrupted by
  nuclear or enemy attack, the traffic on it could
  automatically be re-routed to other undamaged
  links.

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TCP/IP

• ARPANET introduced the idea that you could have
  many different kinds of computers on one network.
• Macs, DOS, UNIX, VMS plus many other models of
  computers are able to communicate using packet
  switching
• A standard set of rules, called TCP/IP
  (Transmission Control Protocol/Internet
  Protocol).

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NSFnet

• The successor to ARPANET was funded by the
  National Science Foundation. During the 1980s
  countries began to adopt the NSF communications
  standard, to build the world-wide network we call
  the Internet
• In 1981, only 200
• hosts were online
• Today there are more than 10M

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Recent History of the Internet

• 1991 the networks were combined.
• The Internet is now a combination of ARPAnet,
  MILnet, NASA Science Internet(NSI) and NSFnet.

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CAnet

• Canadas national network is called CAnet
• Co-ordinating body for provincial and territorial
  networks.
• Over the past decade, we have seen a migration
  from public to private providers. (.com, .net)
• U.S. companies are moving into the Canadian
  market.

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ONet
BCnet
RISQ
NBnet
NSTN
CAnet
MBnet
NLnet
PEInet
ARnet
SASKnet
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General Terms

• IP(internet protocol) number unique number
  consists of four parts separated by dots. It is
  essential for linking to the net. E.g.
  165.113.245.2
• Protocol a set of rules used to accomplish tasks
  on the computer . These rules dictate common
  procedures and format agreed upon by all parties.
  This allows different computers to work
  together.
• Browser a software package that allows access to
  the Internet or www. E.g. IE, Mozilla, Netscape

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General Terms Cont

• Download transferring of data from a remote
  computer down to your computer.
• Upload transferring of data from your computer
  up to another computer.
• Transmission Control Protocol/Internet
  Protocol(TCP/IP) a suit of protocols that works
  together to interconnect different types of
  computers.

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DNS - Domain Name System
www.tvdsb.on.ca www - computer
name .ca canadian network
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Hypertext

• Hypertext allows pages to be linked together
• Hyper Text mark-up Language (HTML) is the
  language used to create hypertext documents.
• Hyper Text Transfer Protocol (Http) the protocol
  used by WWW to transfer to other documents.

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URL(Uniform Resource Locator)

• World Wide Web has its own identification
  system, URL.
• URL is the standard way to give an address of any
  resource on the Internet. It is based on domain
  names used only by WWW, which allows traveling
  between page to page.
• http//www.tvdsb.on.ca/banting/index.htm

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Social Concerns

• Pornographic and racist materials
• Censorship and freedom of speech
• Crime and piracy
• Accessibility and affordability of access
• Information overload
• (Too much information and too little quality)

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Privacy and Protection

• Personal safety
• Hackers and security
• Viruses - prevention and detection
• Integrity of users

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Emerging Careers

• Future trends for careers beyond 2000
• IT (Information Technology) is the hot industry
  of the decade
• Interpersonal and communication skills
• Educational path?
• Canada is a leader of technological excellence

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Canadian Technological Excellence

• Alexander Graham Bell (first telephone)
• First radio transatlantic broadcast(Marconi)
• First newspaper wire-photo technology
• First with digital switching technology
• One of the first with fibre optics
• First direct-to-home television broadcasting
• Anik-A, first domestic satellite

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Leaders in Software Design

• RIM (blackberry)
• Alias and SoftImage (animators for Jurassic Park
  and Terminator II)
• Sheridan College (Disney production studio)
• Development of Archie (the first search engine on
  the Internet)
• Canadians make up 60 of the programmers at
  Microsoft (most from U of Waterloo)