The internet, intranet, and extranet

Internet

- Worldwide collection of millions of computers and networks

- Derived from the term "internetworking"

- No actually owns or run the ______

Internet Backbone

- Foundation network linked with fiber-optic cables

- Can support very high bandwidth

World Wide Web (WWW or "the web")

- Graphical interference to the largely text-based internet in 1989

Hypermedia

- Documents can include embedded references to audio, text, images, video, and other documents

Hypertext

- Embedded references in hypermedia documents

Domain names

- unique identifiers of computer or network addresses on the internet.

Internet Protocol (IP) address

- Assigned by the Internet Corporation for Assigned Names and Numbers (ICANN)

Domain Name system

- Domain names are converted to IP addresses.

Uniform resource locator (URLs)

- Identify a web page, the address of a document or site on the internet.

- Suffix indicating the top-level domain (TLD) it belongs to.

TLD

- Organizational (gTLDS)

- Country-code (ccTLDS)

HTML (Hypertext Markup Language)

- Language used to create web pages

Navigational Tools

- Used to travel from site-to-site or to "surf" the internet

Search engines

- Give you an easy way to look up information and resources on the internet.

Directories

- Indexes of information based on keywords in documents

- Make it possible for search engines to find what you're looking for

Provide example of navigational tools (give 3)

- Graphic Web browsers

- Menu option

- Setting viewing preferences

- Bookmarking

- View browsing history

Provide example of Search engine

- Google.com or Ask.com

- Information system that enables users to retrieve data from the web by searching for information using search terms.

Three step process

- Crawling the web

- Indexing

- The search process

Provide example of Directories (give 2 types)

- Organize information to categories

- Automated & human powered

Popular services

- Email

- Newsgroups

- discussion groups

- Internet relay chat

- Instant messaging

- Internet telephony

Email

- One of the most widely used service on the internet.

- Web based email & client based email

Discussion groups

- Formed for people to exchange opinions and ideas on a SPECIFIC topic

- Group members can post messages or articles that others in the group can read.

Newsgroups

- Typically more GENERAL and can be established for ANY topic.

- Allow people to get together for fun or for business purposes.

Internet relay chat (IRC)

- Enables users in chat rooms to exchange text messages with people in other locations in real time.

Instant messaging (IM)

- Service for communicating with others via the internet in a private "chat room"

- Many IM applications are available.

Internet telephony

- Using the internet rather than the telephone network to exchange spoken conversations.

Voice over Internet Protocol (VoLP)

- Requires high-speed internet connection and microphone or headset

- International and other long-distance calls are much less expensive.

- Call quality has been improving.

Web applications

- Services and products for a wide range of customers at more competitive prices and with increased convinience.

Intranets

- Network within an organization that uses internet protocols and technologies for collecting, storing, and disseminating useful information that supports business acitivities.

- "Corporate portals

- For internal use of employees

Extranets

- Secure network ( uses the internet and web technologies to connect intranets of business partners.)

Type of interorganizational system (IOS)

- Electronic funds transfer (EFT)

- Electronic data interchange (EDI)

DMZ

- Refers to the demilitarized zone, an area of the network that's separate from the organization's LAN

Web 2.0

- Trend of web applications that are more interactive than traditional web applications.

- Collaboration or e-collaboration

Web 3.0

- Provides context for searching online information

- Focuses on "intelligent" web applications using various applications of artificial intelligent technologies

Blogs

- Short for "weblog"

- Journal or newsletter that's updated frequently and intended for the general public.

Wikis

- Allows user to add, delete, and sometimes modify content

- online encyclopedia wikepedia.org

Socal networking sites

- Broad class of websites and services that allow users to connect with friends, family, and colleagues online.

- Facebook, myspace, and Linkedin

RSS Feeds

- "Really simple syndication"

- Fast, easy way to distribute web content in Extensible Markup Language (XML) format.

Podcasting

- Electronic audio file posted on the web for users to download to their mobile devices.

- Has a specific URL and is defined with an XML item tag.

The internet 2

- Collaborative effort involving more than 200 U.S. universities and corporations to develop advanced internet technologies and applications.