M02 un01 p01
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M02 un01 p01 Presentation Transcript

  • 1. Unit 1 – Internet Basics Presentation 1 Web Programming
  • 2. Objectives
    • At the end of this presentation, you will be able to
    • List the requirements to get Internet connection
    • Describe the types of Internet connections
    • Connect your computer to the Internet
  • 3. Introduction to Internet
    • WAN connects computers and devices over a large area.
    • WANs are interconnected throughout the world to form Internet.
    • Internet is a global network of networks.
  • 4. Hands-On!
    • Browse and get the meaning of a word from the
    • site www.dictionary.com .
    • Double-click the Internet Explorer icon on the desktop to open Internet Explorer.
    • Type www.dictionary.com in the Address bar and press the Enter key.
    • Click the Word of the Day hyperlink.
    • Note down the word of the day and its meaning.
  • 5. Requirements to get Internet connection
    • A computer
      • Processor : 486/66MHz
      • Memory : 16 MB
      • Video card which supports 640 X 480 resolution, 256 colors
    • A telephone line
    • A MODEM (Modulator and De-Modulator)
    • An ISP (Internet Service Provider)
    • A Web Browser
  • 6. Types of Internet Connections
    • Dial-up connection
    • Broadband cable
    • DSL and ISDN
    • Wireless connection
  • 7. Dial-up connection
    • Easy and inexpensive connection.
    • Speed is less than 56 kbps.
    • Data travels through telephone line.
    • Set up an account with your ISP.
    • Can connect and disconnect your computer to the Internet whenever you want.
  • 8. Broadband cable connection
    • Connected to the Internet through a cable TV line
    • Faster than dial-up connection
    • Dedicated connection
    • Can browse the Internet and watch the TV at the same time.
  • 9. DSL and ISDN connection
    • DSL is Digital Subscriber Line.
    • ISDN is Integrated Services Digital Network.
    • Connected to the Internet through copper telephone line.
    • Dedicated connection.
    • Errors are less while transmitting.
    • Faster than dial-up connection.
  • 10. Wireless connection
    • Connects Internet with PDAs, notebook computers and smart phones.
    • Connection is established using satellite and cellular radio network.
    • Faster than dial-up connections.
    • Dedicated connection.
  • 11. Connecting to the Internet
    • Double click the dial-up program’s icon in the desktop.
    • In the Connect dialog box, type the username, password and dial number provided by the ISP.
    • Click the Dial button.
    • A connection icon appears on the taskbar.
  • 12. Disconnecting from the Internet
    • To disconnect, click the Connection icon in the task bar. The Status dialog box appears on the screen.
    • Click the Disconnect button.
  • 13. Activity 2.1.1
    • Browse the Internet and find the meanings of the
    • following terms:
    • Cybrarian
    • Cybercafe
    • Cybercitizen
    • E - paper
    • Electronic resume
  • 14. Summary
    • In this presentation, you learnt the following:
    • WANs are interconnected through out the world to form Internet
    • MODEM converts analog signals into digital signals and vice-versa.
    • Data travels through telephone line in dial-up, DSL and ISDN connections.
  • 15. Summary
    • In broadband cable connection, computers are connected to the Internet through a cable TV line.
    • Wireless connection connects Internet with PDAs, notebook computers and smart phones
  • 16. Assignment
    • Define the term Internet.
    • List the requirements to get Internet connection.
    • Write short notes on Dial-up connection.
    • Write down the steps to connect your computer to the Internet.