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Chapter 2B Introduction to the Web (WWW) (Web (WWW) (consist of infor…
Chapter 2B
Introduction to the Web (WWW)
Web (WWW)
consist of infor organized into web pages
containing text and graphic image
contain hypertext, hyperlink, hypermedia
Accessing Internet
Local Area Network (LAN)
Internet Service Provider (ISP)
organization (cable or telephone company)
supply connection to the internet for a monthly fee
Accessing Web
Internet Connection
Use browser to access web
13 types of website
portal
news
informational
business/ marketing
blog
wiki
online social network
educational
entertainment
advocacy
web application
content aggregator
personal
Intranet
internal networking within a company
Extranet
intranet that can be used by outside source
Uniform Resource Locators (URL)
four parts addressing scheme
protocol > server > path > resource (file name)
HTTP
enable web server software to communicate with client software and vice versa
have 2 phases (request and response)
Client / Server Side Code
Client Side Code
software that downloaded from web server to browser, then executes on client
Advantages
better scalability
better performance
cool effect
data validation
Server Side Code
software that run on the server, not client
can access server side database, email server, files
build a custom HTML response for a client
Advantages
accessibility
security
manageability
scalability