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Chapter 10 : Internet and Mobile Multimedia - Coggle Diagram
Chapter 10 : Internet and Mobile Multimedia
The Origin
Began as a research network funded by the Advanced research Projects Agency(ARPA) of the U.S. defense Department
By the mid 1990s, the Internet included connections to more than 60 countries and more than 2 million host
computers
About one out of every four people around the world has access to the internet at the beginning of 2010
Internetworking
A network is a cluster of computers
In a network, the server computer provides network services to the client computer on that network
LANs and WANs can be connected to the internet through a server that provides Internet software
Internet Address
The Domain Naming System was developed to assigns names and addresses to computers linked to the Internet
Top-level domains were established as categories to accommodate Internet users.
com - commercial entities
edu - degree-granting colleges and universities
gov - government agencies
net - computers belonging to network providers
the two-letter US domain is based on political boundaries
TCP/IP
Transmission Control Protocol (TCP) and Internet Protocol (IP) are the protocols for communication the Internet
A stream of data that is sent over the Internet is first
broken down into packets by the TCP
TCP/IP is two important Internet protocols working in concert
Connections
A telephone dial-up account and modem, a cable modem, or a DSL is required for network connection
The amount of data you can send from one computer to another in a given time is referred as
bandwidth.
Internet Services
The Internet means World Wide Web for many users, but the web is only the lastest and most popular services
Each Internet service is implemented on an Internet server by a software known as a daemon.
Daemons are agent programs that run in the
background
World Wide Web
Designed by Tim Berners-Lee
Protocol for linking multiple documents located on computers within the Internet
Hypertext Markup Language (HTML) is a document format for presenting structured text
Dynamic HTML and XML
An HTML document could contain hyperlinks and anchors
HTML is fine for building and delivering
uncomplicated static web pages
JavaScript may be inserted to perform tasks and functions beyond HTML abilities
XML (eXtensible Markup Language) is used to
format and delivery Web pages using styles.
Mobile Multimedia
Refers to various type of contents that are either accessed via portable devices or created using them
Multimedia-enabled mobile devices such as smart phones and tablets are becoming the computing device of choice by user of all ages