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The Internet and World Wide Web (The World Wide Web (Types of Web sites…
The Internet and World Wide Web
The
Internet
is a worldwide
collection of networks
that
links
millions of
businesses
,
government
,
educational **
institutions
and
individuals**.
Evolution of the internet
ARPANET(September 1969)
Allow scientists at different physical locations to share information and work together
Function even if part of the network were disabled or destroyed by a disaster
Each organization is responsible only for maintaining its own network
The World Wide Web Consortium(W3C) oversees research and sets guidelines and standards
Internet2 connects more than 200 universities and 115 companies via a high speed private network
Fixed wireless
Filter to the Premises(FTTP)
DSL
Cable internet service
Cellular Radio Network
Wi-Fi
Satellite Internet Service
An
access provider
is a business that provides individuals and organisations access to the Internet free or for a fee.
ISP(Internet service provider)
Regional ISPs provide Internet access to a specific geographical area
National ISPs provide Internet access in cities and towns nationwide
Online service provider (OSP)
Has many members-only features
Popular OSPs include AOL(American Online) and MSN(Microsoft Network)
Wireless Internet service provider(WISP)
Provide wireless Internet access to computers and mobile devices
May require a wireless modem
An
IP address
is a number that uniquely identifies each computer or device connected to the internet
A
domain name
is the text version of an IP address -top-level domain(TLD)
A
DNS server translates
the domain name into its associated IP address
The World Wide Web
The
WWW
or
Web
, consists of a worldwide collection of electronic documents (Web pages)
A
Web site
is a
collection of related Web pages and associated items
A
Web server
is a
computer that delivers requested Web pages to your computer
Web 2.0
refers to Web sites that
provide a means for users to interact
A
Web browser
, or
browser
allows users to
access Web pages and Web 2.0 programs
Internet Explorer, Firefox, Opera, Safari, Google Chrome and etc.
A
home page
is the first page that a Web site displays
Web pages provides
links
to other related Web pages
Surfing
the Web
Web page has a unique address called a
URL
or
Web address
Tabbed browsing
allows to open and view multiple Web pages in a single Web browser window
Downloading
is the process of receiving information
A
plug-in
is a program that extends the capability of a Web browser
Web publishing
is the development and maintenance of Web pages
Plan a Web site---Analyze and design a Web site--Create a Web site--Deploy a Web site---Maintain a Web site
Search tools
Search engine
Find information related to a specific topic
Images, videos, audio, news, maps, people or businesses and blogs
Subject directory
Classifies Web pages in an organized set of categories
Instant Search box
Eliminate the steps of displaying the search engine's Web page prior to entering the search text
Search operator
+=specific words
OR=one from list
()=combine hits that include specific words with those that include only one word from a list
-=exclude a word from the search results
**=search for an exact phase
*=substitutes characters i
Types of Web sites
Portal
News
Informational
Business/Marketing
Blog
Wikis
Online Social Network
Educational
Entertainments
Avocacy
Content Aggregator
Personal
Multimedia
refers to any application that combines
text with graphics, animation, audio, video and Virtual Reality
Audio
includes
music, speech or any other sound
-compressed to reduce file size
Listen using a
player
Video
consists of
full-motion images that are played back at various speeds
Virtual reality
is the use of computers to simulate a real or imaged environment that appears as a three-dimension space
A
graphic
is a digital representation of non-text information:
BMP,BMP,GIF,JPEG,PNG and TIFF
A
thumbnail
is a
small version of a larger graphic
Streaming
is the process of transferring data in a continuous and even flow
E-commerce
is a business transaction that occurs over an electronic network---
M-commerce
identifies e-commerce that takes place using mobile device
Business-to-consumer (B2C)
Business-to-business (B2B)
Consumer-to-consumer (C2C
Other Internet Services
E-mail
is the transmission of messages and files via a computer network
An
e-mail program
allows to send, create, receive, forward, store, print and delete e-mail messages
A
mailing list
is a group of e-mail names and addresses given a single name
Subscribing
adds email name and address
Unsubscribing
remove names
Instant messaging (IM)
is a
real time
Internet communications service
uploading
and downloading with other computers on the Internet
A
chat
is a real time typed conversion that takes place on a computer
A
chat room
is a location on an Internet server that permits users to chat with each other
VoIP
(Voice over IP) enables users to speak to other users over the Internet- also known Internet telephony
A
newsgroup
is an online area in which users have written discussion about a particular subject-typically requires a newsreader
A
message board
is a Web-based type of discussion group
FTP
(File Transfer Protocol) is an Internet standard that permits file
Many operating systems include FTP capabilities
An FTP server is a computer that allows users to upload and/or download file using FTP
Netiquette
is the code of acceptable Internet behaviour