~ ♥ ~ History & the Underlyning Technologies ~ ♥ ~

SESSION 1

Internet

♥ starts in the 1950s and 1960s with the development of computers.
♥ began with point-to-point communication between mainframe conputers and terminal.
♥ expanded to point-to-point connections between computers.
♥ and then early research into packet switching.
♥ packet switched were developed in the late 1960s and early 1970s using a variety of protocols.
♥ in 1982, the concept of a world-wide network of fully interconnected TCP/IP networks called INTERNET was produced and Internet Protocol Suite (TCP/IP) was standardized.

Uses of INTERNET.
~ send e-mail message.
~ upload or download files between computers.
~ Travel all over the world.
~ blogging is use as a communication platform to interact with people.
~ Can find anything to buy through Internet.
~ Social networking has created new ways to coomunicate and share information among us.
~ Can learn to do anything or sharp a skill a skill you already have.

7 Layers of OSI Model.

 

HTML ( HyperText Markup Language )

♥ is the predominant matkup language for web pages.

♥ basic building-blocks of webpages.

♥  consisting of tags, enclosed in angle bracket (like <html>), within the web page content.

World Wide Web (WWW)

= abbreviated as WWW or W3, and commonly known as the Web.
= view web pages that contain text, images, videos, and other multimedia and nivigate between them via hyperlinks.

Latest Development In Internet
♥ File Sharing
   - Napster, Gnutella, Morphues
♥ Dot Net
   - XML based Web Services
   - "Semantic Net"
♥ Broadband
   - Media Delivery over the Web


SESSION 2

ISP, Configuring Internet Connection, Troubleshooting.

Way Internet Working.

Internet Connection

 IP Adressing

~ Internet Protocol address (IP address)
~ numerical label assigned to each device numerical label assigned to each device.
~  serves two principal function :
    - host or network interface identification
    - location addressing
~  designers of the Internet Protocol defined an IP address as a 32-bit number.


URL ( uniform resource locator or universal resource locator)
♥  specific character string that constitutes a reference to an Internet resource.

Hypertext Transfer Protocol (HTTP)
♥ application protocol for distributed, collaborative, hypermedia information systems.
♥ foundation of data communication for the World Wide Web.
♥ another protocol that can be used in Internet is File Transfer Protocol (FTP) & Telnet Protocol.

Troubleshooting Internet Connection
~ Make sure you have the correct IP scheme for your network.
   -IP Address
   -Subnet Mask
   -Default Gateway
   -DNS Servers
~ Basic PING Tests
~ Check Browser configuration

SESSION 3

Issue About Internet.

~ security of people and their information when using the Internet.
  e.g. : Username & Password - jot down your username & password
                                                 - keep the username & password safely absolutely NOT in our computer
                                                

Phishing 

~ way of attempting to acquire information such as usernames, passwords, and credit card details.
~ by masquerading as a trustworthy entity in an electronic communication.
~ typically carried out by e-mail spoofing or instant messaging.
~ often directs users to enter details at a fake website whose look & feel are almost identical to the legitimate one.

Spoofing

~ situation in which one person or program successfully masquerades as another.
~ falsifying data and thereby gaining an illegitimate advantage.

Virus Protection Software               
♥ McAfee
♥ Norton Anti Virus

Firewall

♥ device or set of devices designed to permit or deny network transmissions.
♥ frequently used to protect networks from unauthorized access while permitting legitimate communications to pass.