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ITD 3194 – Aplikasi Web (PowerPoint)


  • pg 1
									ITD 3194 – Aplikasi Web

           Chapter 1:
           Introduction to basic
           concepts of web
  WEDNESDAY 10-12 pm

is composed of several computers connected
     together to share resources and data.


     a collection of
   computer networks,
linked by copper wires,
    fiber-optic cables,
  wireless connections,
                Visualization of the various routes through a portion of the Internet
WWW (World Wide Web)

   services accessible via the Internet
   It is a graphical interface that utilizes the
    Internet to distribute and retrieve information.
   In contrast, the Web is a collection of
    interconnected documents and other
    resources, linked by hyperlinks and URLs or
    a collection of linked Web pages.
ISP (Internet Service Provider)

   is a company or business that provides access to the
    Internet and related services.
   most ISPs were run by the phone companies, but
    now ISPs can be started by just about any individual
    or group with sufficient money and expertise. E.g
    iZZi by iZZinet Sdn.Bhd, P1 by Green Packet.
   Rather than dial-up and DSL, they may provide a
    combination of services including Internet transit,
    domain name registration and hosting, web hosting.
IP (Internet Protocol)

   IP is a network layer protocol in the Internet
    Protocol Suite >> TCP/IP
   IP handles lower-level transmissions from
    computer to computer as a message makes
    its way across the Internet
   has the task of delivering distinguished
    protocol datagrams (packets) from the
    source host to the destination host solely
    based on their addresses.
IP address

   is a unique address that certain electronic
    devices use in order to identify and
    communicate with each other on a computer
    network, utilizing the Internet Protocol
    standard (IP)—in simpler terms, a computer
   managed and created by the Internet
    Assigned Numbers Authority (IANA).
An illustration of an IP address (version 4), in both dot-decimal notation and binary.
Web Browser

   is a specific software program required to
    display Web pages.
   Access Web pages by entering its URL into
    the Web browser’s address bar.

Internet Explorer

             Mozilla Firefox

                               Netscape Navigator

   Uniform Resource Locator (URL) is
    comprised of the protocol, followed by the
    domain name.
    1.   Hypertext Transfer Protocol
    2.   Domain name can be an IP address or a text
         version of this address


   protocol      address

   Domain Name System (DNS) is to translate
    hostnames to IP addresses.
   DNS distributes the responsibility for
    assigning domain names and mapping them
    to IP networks by allowing an authoritative
    name server
Search Engine

   A search engine is an information retrieval
    system designed to help find information
    stored on a computer system.
   A Web search engine is a search engine
    designed to search for information on the
    World Wide Web.
   Information may consist of web pages,
    images and other types of files.
Other Internet Services

1.   FTP
     –   File Transfer Protocol (FTP) is a
         network protocol used to transfer data
         from one computer to another through
         a network, such as over the Internet.
         While transferring data over the
         network, several data representations
         can be used.
            ASCII mode:
            Binary mode: In "Binary mode", the
             sending machine sends each file byte
             for byte and as such the recipient stores
             the bytestream as it receives it.
2.       Email
     –    Electronic Mail (e-mail) is a store and forward
          method of composing, sending, receiving and
          storing messages over electronic
          communication systems.
3.   Newsgroups
     –   Newsgroup is a web application for holding
         discussions and posting user-generated content.
         its also commonly referred to as Web forums,
         message boards, discussion boards, (electronic)
         discussion groups, discussion forums, bulletin
         boards or forums.
4.   Mailing Lists
     –   A mailing list is a collection of names and
         addresses used by an individual or an
         organization to send material to multiple
5.   Chat Rooms
     –   A chat room is a term used primarily by mass
         media to describe any form of synchronous
         conferencing, occasionally even asynchronous
     –   The term can thus mean any technology ranging
         from real-time online chat over instant
         messaging and online forums to fully immersive
         graphical social environments.
6.   Web Portals
     –   Web portal is site that provides a single function
         via a web page or site. Portals provide a way for
         enterprises to provide a consistent look and feel
         with access control and procedures for multiple
         applications, which otherwise would have been
         different entities altogether.
     –   Two broad categorization of portals are a.
         Horizontal portals (e.g. Yahoo) b. Vertical portals
         (focused on one functional area. e.g.,
7.    Telnet (Teletype Network)
     – A terminal emulation program for TCP/IP
        networks such as the Internet. The Telnet
        program runs on computer and connects PC to
        a server on the network.
     – User can enter commands through the Telnet
        program and they will be executed directly on
        the server console. This enables user to control
        the server and communicate with other servers
        on the network.
Impact of the Internet and the Web

1.   Education
     –   Formal and informal teaching and learning
     –   Learning and Teaching Style
     –   Enhances traditional teaching methods
     –   Online education or web base environment (course,
         material etc.)
2.   Communication
     –   worldwide communication medium that lends itself to
         the peculiar needs of international dialogue
     –   Email, video conferencing, chat etc.
3.   Medical
     –   informational web-based tools for physicians,
         patients, and their families for best practices in
         clinical care, research, and education.
     –   Share online medical resources.
4.   Entertainment
     –   Entertainment web sites include music, videos,
         sports, games, and Online gamming.
5.   Business
     –   Electronic commerce (e-commerce) is the practice of
         conducting business activities online, such as
     –   Business-to-consumer (B2C), Business-to-business
         (B2B), Consumer-to-consumer (C2C).
     –   Opportunity to change its relationships with the
         organizations and individuals with which it does
         business-from trading partners to suppliers, from
         internal customers to end customers
     –   Internet marketing, Internet advertising.
     –   operation efficiencies and reduced costs.

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