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CHAPTER 11 : THE INTERNET & MULTIMEDIA - Coggle Diagram
CHAPTER 11 : THE INTERNET & MULTIMEDIA
DYNAMIC HTML & XML :explode:
XML (Extensible Markup Language) is used to format and delivery Web pages using styles.
Dynamic Web pages can be created using Cold Fusion, PHP, JavaScript, and programs written in Java.
THE ORIGIN OF THE INTERNET
The Internet began as a research network funded by the Advanced Research Projects Agency (ARPA) of the U.S. Defence Department in 1969.
In 1989, the National Science Foundation (NSF) took over the management of the ARPANET.
The World Wide Web & HTML : :world_map:
Designed by Tim Beners-Lee & is a protocol for linking multiple documents located on computers anywhere within the Internet.
The Hypertext Transfer Protocol (HTTP
) - provides rules for a simple transaction between two computers on the Internet
Hypertext Markup Language (HTML)
- is a document format for presenting structured text mixed with inline images.
INTERNETWORKING
A network is a cluster of computers.
The server computer provides network services to the client computers on that network.
LANs and WANs can be connected to the Internet through a server that provides Internet software and physical data connection.
INTERNET ADDRESS
The Domain Naming System (DNS) assigns names and addresses to computers linked to the Internet
The IP address or Internet address is made up of four
numbers separated by periods.
Top-level domains (TLDs) were established as categories to accommodate Internet users.
THE CATEGORIES
.com
for commercial entities;
.edu
for degree-granting colleges and universities;
.gov
for government agencies;
.mil
for Military; two-letter US United States/Political boundaries.
WEB BROWSER
:spider_web:
Applications that run on a user personal computer. To provide the interactive graphical interface for searching, finding and viewing text documents, sound , animation and other resources on the Web.
Example: Internet Explore(IE), Mozilla Firefox, Google, Chrome and Safari. :fire:
CONNECTIONS
A telephone dial-up account and modem, a cable modem or a digital subscriber line is required for network connection
An ISP ( Internet Service Provider) offers on or more Points of Presence (POPs) to connect to the ISP's server
The PPP (Point-to-Point Protocol) and the TCP/IP software are required to connect to the interne through an ISP
A telephone dial-up account and modem, a cable modem, or a Digital Subscriber Line (DSL) is required for network connection.
An ISP (Internet Service Provider) offers one or more Points of Presence to connect the ISP's server
The PPP( Point to Point Protocol) and TCP/IP software are required to connect to the internet through an ISP
The amount of data expressed in terms of bits per second (bps( is referred to as bandwidth
The greater the bandwidth, the lesser will be the time taken to upload or download data
Bandwidth bottlenecks can be avoided
▪ Compress data before transmitting.
▪ Oblige users to download data only once, and
then store that data on the system's hard disk.
▪ Design multimedia elements to be efficiently
compact.
▪ Design alternate low-bandwidth and highbandwidth navigation paths to accommodate all
users.
▪ Implement incremental streaming methods.
Internet Services
▪ Each Internet service is implemented on an Internet
server by dedicated software known as a daemon.
▪ Daemons are agent programs that run in the
background and wait to act on requests.
▪ It supports services such as Hypertext Transfer Protocol
(HTTP) and Post Office Protocol (P
Recognizable documents and formats are required to work with multimedia on the Internet.
• MIME (Multipurpose Internet Mail Extensions) type is a standard list of file name extensions.
• It identifies the nature and purpose of the transmitted data