The Internet, Intranets And Extranets
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The Internet, Intranets, and Extranets ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Group members Muhammad Shafique Umair Qyume Farhan Adeel Tahir Ishfaq Rao Khalil Sabahat Naheed Fatima Zaheer ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Internet & History Internet:-
The Internet is a huge and evergrowing network that links computers and computer networks around the world.
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Internet & Networking The internet – A network of networks – The internet transmits data from one computer (called a host) to another Internet networks – Linked networks that work much the same way -- they pass data around in packets, each of which carries the addresses of its sender and receiver ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Internet ‘Discussion A global network connecting millions of computers. As of 1999, the Internet has more than 200 million users worldwide, and that number is growing rapidly. More than 100 countries are linked into exchanges of data, news and opinions. Unlike online services, which are centrally controlled, the Internet is decentralized by design. Each Internet computer, called a host, is independent. Its operators can choose which Internet services to use and which local services to make available to the global Internet community. Remarkably, this anarchy by design works exceedingly ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Internet Service Providers Internet service provider (ISP) – Any company that provides individuals or companies with access to the Internet – Thousands of providers including large communications companies – Need an account with the ISP and software that links with TCP/IP
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
ISP Examples Internet Service Provider
Web Address
AT&T WorldNet Service
www.att.com
Digex, Inc.
www.digex.net
GTE Internetworking
www.gte.net
IBM Internet Connection
www.ibm.net
MCI Internet
www.mci2000.com
Netcom On-Line Communication Services PSINet, Inc.
www.netcom.com
Sprint Internet Services
www.sprint.net
UUNet Technologies, Inc.
www.us.uu.net
ITEC 1010
www.psinet.com
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Internet Services – – – – – – – – ITEC 1010
E-mail Telnet FTP Usenet and newsgroups Chat rooms Internet phone Internet videoconferencing Content streaming
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Internet Services Internet telephony – Also called voice-over-IP (VOIP) • Technology that enables network managers to route phone calls and fax transmissions over the same network they use for data
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Uses Of Internet (1) Identify problems and possibilities by using links to
surf among Internet sites to discover the range of data that is available, e.g., surfing serendipity.
(2) Search for information to solve a problem by using
a search engine or an Internet site.
(3) Obtain information when users know what they
want by accessing a specific Internet site or by using a search engine to link to a specific Internet site address.
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Uses Of Internet (4) Communicate with others via e-mail, file transfer, chat mode, and eventually videoconferencing.
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Internet Drawbacks Management issues – No centralized governing body for the Internet
Service bottlenecks – Phenomenal growth has left a service void – Providers underestimating computing power needed – Reconciling router addresses needed to transverse the network ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
The World Wide Web World Wide Web • A collection of tens of thousands of independentlyowned computers that work together as one in an Internet service
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
WWW Terminology Web browser • Software that creates a unique hypermedia-based menu on your computer screen and provides a graphical interface to the Web
Web page • A screen of information sent to a requesting user and presented through a browser
Applet • A small program embedded in Web pages ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Intranets and Extranets Intranet • An internal corporate network built using Internet and World Wide Web standards and products that allows employees of an organization to gain access to corporate information
Extranet • A network based on Web technologies that links selected resources of the intranet of a company with its customers, suppliers, or other business partners ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Intranet ‘Discussion’ A network based on TCP/IP protocols (an internet) belonging to an organization, usually a corporation, accessible only by the organization's members, employees, or others with authorization. An intranet's Web sites look and act just like any other Web sites, but the firewall surrounding an intranet fends off unauthorized access. Like the Internet itself, intranets are used to share information. Secure intranets are now the fastest-growing segment of the Internet because they are much less expensive to build and manage than private networks based on proprietary protocols. ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Extranet ‘Discussion’ A new buzzword that refers to an intranet that is partially accessible to authorized outsiders. Whereas an intranet resides behind a firewall and is accessible only to people who are members of the same company or organization, an extranet provides various levels of accessibility to outsiders. You can access an extranet only if you have a valid username and password, and your identity determines which parts of the extranet you can view. Extranets are becoming a very popular means for business partners to exchange information. ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Firewall Firewall… • A device that sits between your internal network and the outside Internet and limits access into and out of your network based on your organization’s access policy
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Have a nice day…
Encryption software running on sending computer E%$&:”}{|…
Decryption software running on Receiving computer
ITEC 1010
Have a nice day…
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Ask
Questions? ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Thanks
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
The Internet, Intranets, and Extranets ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Group members Muhammad Shafique Umair Qyume Farhan Adeel Tahir Ishfaq Rao Khalil Sabahat Naheed Fatima Zaheer ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Internet & History Internet:-
The Internet is a huge and evergrowing network that links computers and computer networks around the world.
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Internet & Networking The internet – A network of networks – The internet transmits data from one computer (called a host) to another Internet networks – Linked networks that work much the same way -- they pass data around in packets, each of which carries the addresses of its sender and receiver ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Internet ‘Discussion A global network connecting millions of computers. As of 1999, the Internet has more than 200 million users worldwide, and that number is growing rapidly. More than 100 countries are linked into exchanges of data, news and opinions. Unlike online services, which are centrally controlled, the Internet is decentralized by design. Each Internet computer, called a host, is independent. Its operators can choose which Internet services to use and which local services to make available to the global Internet community. Remarkably, this anarchy by design works exceedingly ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Internet Service Providers Internet service provider (ISP) – Any company that provides individuals or companies with access to the Internet – Thousands of providers including large communications companies – Need an account with the ISP and software that links with TCP/IP
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
ISP Examples Internet Service Provider
Web Address
AT&T WorldNet Service
www.att.com
Digex, Inc.
www.digex.net
GTE Internetworking
www.gte.net
IBM Internet Connection
www.ibm.net
MCI Internet
www.mci2000.com
Netcom On-Line Communication Services PSINet, Inc.
www.netcom.com
Sprint Internet Services
www.sprint.net
UUNet Technologies, Inc.
www.us.uu.net
ITEC 1010
www.psinet.com
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Internet Services – – – – – – – – ITEC 1010
E-mail Telnet FTP Usenet and newsgroups Chat rooms Internet phone Internet videoconferencing Content streaming
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Internet Services Internet telephony – Also called voice-over-IP (VOIP) • Technology that enables network managers to route phone calls and fax transmissions over the same network they use for data
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Uses Of Internet (1) Identify problems and possibilities by using links to
surf among Internet sites to discover the range of data that is available, e.g., surfing serendipity.
(2) Search for information to solve a problem by using
a search engine or an Internet site.
(3) Obtain information when users know what they
want by accessing a specific Internet site or by using a search engine to link to a specific Internet site address.
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Uses Of Internet (4) Communicate with others via e-mail, file transfer, chat mode, and eventually videoconferencing.
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Internet Drawbacks Management issues – No centralized governing body for the Internet
Service bottlenecks – Phenomenal growth has left a service void – Providers underestimating computing power needed – Reconciling router addresses needed to transverse the network ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
The World Wide Web World Wide Web • A collection of tens of thousands of independentlyowned computers that work together as one in an Internet service
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
WWW Terminology Web browser • Software that creates a unique hypermedia-based menu on your computer screen and provides a graphical interface to the Web
Web page • A screen of information sent to a requesting user and presented through a browser
Applet • A small program embedded in Web pages ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Intranets and Extranets Intranet • An internal corporate network built using Internet and World Wide Web standards and products that allows employees of an organization to gain access to corporate information
Extranet • A network based on Web technologies that links selected resources of the intranet of a company with its customers, suppliers, or other business partners ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Intranet ‘Discussion’ A network based on TCP/IP protocols (an internet) belonging to an organization, usually a corporation, accessible only by the organization's members, employees, or others with authorization. An intranet's Web sites look and act just like any other Web sites, but the firewall surrounding an intranet fends off unauthorized access. Like the Internet itself, intranets are used to share information. Secure intranets are now the fastest-growing segment of the Internet because they are much less expensive to build and manage than private networks based on proprietary protocols. ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Extranet ‘Discussion’ A new buzzword that refers to an intranet that is partially accessible to authorized outsiders. Whereas an intranet resides behind a firewall and is accessible only to people who are members of the same company or organization, an extranet provides various levels of accessibility to outsiders. You can access an extranet only if you have a valid username and password, and your identity determines which parts of the extranet you can view. Extranets are becoming a very popular means for business partners to exchange information. ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Firewall Firewall… • A device that sits between your internal network and the outside Internet and limits access into and out of your network based on your organization’s access policy
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Have a nice day…
Encryption software running on sending computer E%$&:”}{|…
Decryption software running on Receiving computer
ITEC 1010
Have a nice day…
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Ask
Questions? ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
Thanks
ITEC 1010
Information and Organizations NATIONAL UNIVERSITY OF MODERN LANGUAGES
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