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Connectivity the Internet and access

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The then MCI Internet Backbone, now Cable & Wireless Backbone, alone was ... Be advised that campus Internet Service is being degraded due to damage ... – PowerPoint PPT presentation

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Title: Connectivity the Internet and access


1
Connectivity the Internet and access
  • LS39A Access to Information in the Caribbean
  • October 26, 2005

2
The Internet is based on Connectivity
  • The Internet, or simply the Net, is the
    publicly accessible worldwide system of
    interconnected computer networks that transmit
    data by packet switching using a standardized
    Internet Protocol (IP) and many other protocols.
  • thousands of smaller commercial, academic,
    domestic and government networks.
  • various information and services, such as
    electronic mail, online chat, and the interlinked
    web pages and other documents of the World Wide
    Web.

3
Connectivity
  • connecting devices to each other in order to
    transfer data back and forth.
  • refers to network connections, which embrace
    bridges, routers, switches and gateways as well
    as backbone networks.
  • refers to connecting a home or office to the
    Internet or connecting a digital device to a
    computer or printer. Ziff Davis Internet
    Encyclopedia

4
Internet Connectivity
  • What does connectivity mean?
  • Requirements
  • Levels of connectivity -
  • LANS, WANS etc
  • Connections
  • Internet usage
  • Internet usage in the Caribbean

5
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6
Internet host
  • An Internet host is defined as a computer that is
    connected to the.
  • At the start of 1999, 206 of the world's 246
    countries and territories were on the Internet
    represented by an estimated 50 million hosts, 700
    million web pages, and 140 million users. In mid
    1998 an estimated 1 PetaByte (1 quadrillion, 10
    15 bytes) per week was sent over the
    Internet. 
  • The then MCI Internet Backbone, now Cable
    Wireless Backbone, alone was carrying 200
    TByte/week in mid-1998   (from Vinton G. Cerf,
    Sr. Vice President, Internet Architecture and
    Technology, MCI WorldCom). The number of bytes
    sent per week over the Internet is currently
    doubling about every six to twelve months.
    Internet Society

7
Internet connectivity
  • Definitions
  • Having the hardware, software, and
    telecommunications to enable connection to the
    Internet

8
Connection options
  • Modem, dialup
  • Updated by Carson Block Rose Nelson on July 20,
    2004
  • Connectivity options for dedicated circuitsthat
    is, an Internet connection that is on all of
    the time.
  • T-1   
  • A full T-1 Circuit has the capability of
    transferring data at a speed of 1.54 MB/second. 
    In the old days (before bandwidth-intensive
    things such as streaming video), a rule of thumb
    was that a single T-1 line could serve 100 users.
  • A frame relay T-1 is generally the most
    affordable version of the circuit.   
  • When the speed of a T-1 is less than 1.54 MB/sec,
    it is called a fractional T-1.   A 56k line is
    the smallest fractional T-1 available. Cable  
  • Cable companies, offer high-speed data services
    over their cable networks. 
  • Satellite   Using a personal-sized satellite
    dish, companies such as Direct TV offer download
    speeds at about 400k/sec. 
  • XDSL   family Where available, DSL service can
    be a strong price/performance option for
    libraries. 

9
Digital Divide
  • http//www.bridges.org/spanning/index.html
  • Spanning the digital divide understanding and
    tackling the issues May 2001

10
CONNECTIVITY
  • On the Internet no body knows if you are a dog
  • Connectivity facilitates interaction among
    people, groups and institutions
  • It has enabled the development of a social,
    economic and political infrastructure which has
    provided the basis for new developments in
    business, government, education, etc

11
  • The Internet as the most dramatic development of
    the century has reduced distance
  • Permits interaction among groups with similar
    interests and concerns
  • Exchange of information
  • Learning
  • Information for decision making
  • Trading
  • Entertainment
  • Connecting people and institutions

12
Cables
13
Be advised that campus Internet Service is being
degraded due to damage inflicted on the Cable
Wireless Maya 1 submarine cable system in the
Cancun area by Hurricane Wilma. Cable Wireless
has further advised that it has commenced
rerouting of its Internet traffic to alternate
facilities but a short term service gap should be
expected.
14
Caribbean undersea cables
  • International Cable Protection Committee
  • http//www.iscpc.org/cabledb/caribbean.htm

15
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16
MAYA-1 Undersea Cable
  • MAYA-1 (Updated 29 October 2002, ATT)
  • In-Service October 2000Hollywood, Florida, USA
    -- Cancun, Mexico -- Puerto Cortes, Honduras --
    Half-Moon Bay, Grand Cayman -- Puerto Limon,
    Costa Rica -- Maria Chiquita, Panama -- Tolu,
    Columbia - 4,323 KM at 8 x 2.5Gb/s
    SDHMaintenance Authorities ATT, TELMEX,
    HONDUTEL

17
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19
Liberalization
  • Jamaica Telecommunications Act 2000
  • Trinidad and Tobago
  • Organization of Eastern Caribbean States (OECS)

20
Towards Universal Access
  • to the extent technically feasible and in
    so far as the necessary resources are available,
    to promote Internet access throughout the Island
    in schools, public libraries and post offices
  • Jamaica Telecommunications Act No.1 of 2000
  • http//www.moj.gov.jm/?qlaw/view/516

21
Regulation
  • OUR Office of Utility Regulation (Jamaica)
  • ECTEL Eastern Caribbean Telecommunications
    Authority
  • Trinidad and Tobago

22
Universal service
  • Where the universal service obligation is
    determined the Office shall, on the request of
    the Minister and subject to subsection (9, make
  • recommendations as to the nature of the
    obligation to be imposed on the provider of such
    service.

23
  • Telecentres
  • Cybercentres
  • Cybercafes
  • Internet cafes
  • Community Access Points

24
Telecentres are
  • Public facilities which provide access to one or
    more types of telecommunications services.

25
Community access centres
  • Focus on the needs of the community can be
    expected to define required information services
    and products and to enable users to obtain
    relevant information.

26
Jamaica Sustainable Development Network
  • Telecentres have been established in
  • Browns Town Parish Library
  • Liguanea Cybercentre
  • Montego Bay Marine Park
  • Lionel Town

27
Jamaica Library Service
  • Public Libraries
  • Branch Libraries

28
Information and communication technologies
facilitate sharing of information linking
people and enhancing the development process.
29
Increasingly information and communication
technologies are becoming important conduits
through which society accesses information.
30
Computer literacy
  • Has become a basic requirement for employment.

31
Telecentres
  • Have the potential to offer
  • Public access to the Internet enabling those
    without computers and communications links to
    access and exchange information.
  • Type of connections

32
Connectivity and Community access
33
Reference
  • Ormes and McClure
  • A Comparison of Public Library Internet
    Connectivity in The USA and UK
  • http//www.ukoln.ac.uk/services/papers/ukoln/ormes
    -1997-01/

34
Reference
  • DeFreitas Donnie, Charles Kenny and Robert
    Schware
  • Caribbean cooperation rise of the regional
    regulator. In The Journal of Policy, Regulation
    and Strategy for Telecommunications Information
    and Media Vol 3 No 3 June 2001.pp 189-193

35
References
  • Orms and Dempsey
  • Library and Information Commission Public Library
    Internet Survey 1995
  • http//www.ukoln.ac.uk/services/papers/ukoln/ormes
    -1995-01/

36
References
  • Durrant, Fay
  • Project for the Establishment of two Community
    Telecentres in Jamaica Final Report prepared for
    the Jamaica National Commission for Unesco. 2002
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