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Chapter 6

Chapter 6 . Introduction to Internet. Chapter 6. 6.1 Identify each of the ARPANET and the INTERNET. ARPANET was the network that became the basis for the Internet . ARPANET was developed under the direction of the U.S. Advanced Research Projects Agency ( ARPA ).

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Chapter 6

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  1. Chapter 6 Introduction to Internet

  2. Chapter 6

  3. 6.1 Identify each of the ARPANET and the INTERNET • ARPANET was the network that became the basis for the Internet. • ARPANET was developed under the direction of the U.S. Advanced Research Projects Agency (ARPA). • In 1969, the idea became a modest reality with the interconnection of four university computers. • The initial purpose was to communicate with and share computer resources among mainly scientific users at the connected institutions.

  4. 6.2 Basic Internet Definition • ARPANet: The precursor to the Internet. • ASCII: American Standard Code for Information Interchange. The de facto world wide standard code for alphanumeric characters. • Blacklist: Describes inappropriate advertisers on Usenet newsgroups and via junk E-mail. • Browser: A program that is specifically used to look at various WWW resources. • Client: Any computer that makes use of services available from other computers. • Domain Name: A unique name that identifies an Internet site. The name always has two or more parts separated by a dot. The last part of the name identifies the site ( i.e. gov for government, edu for education, com for commercial, or net for network). An electronic street address.

  5. 6.2 Basic Internet Definition • E-mail: Messages, usually text, sent from one person to another via a computer. • Fire Wall : A combination of hardware and software that separates a LAN into two or more parts for security purposes. • Host :- A computer or software package which provides a specific kind of service to other computers. One that is seen by other computers on the Internet. • LAN:Local Area Network. Several computers located in the same physical location which are connected together in order to share information and services. • Modem: A device that allows a computer to use a phone line to communicate with another computer. • Protocol: The rules of conduct which enables a computer to communicate with another computer.

  6. 6.2 Basic Internet Definition • PPP: A protocol that allows a computer to use a telephone line and a modem to make TCP/IP connections. • Server: Any computer that makes services available to other computers. • TCP/IP: Transmission Control Protocol/Internet Protocol. This is the protocol which defines the Internet. • URL: Uniform Resource Locator. A unique name that identifies an Internet site. • WWW:World Wide Web. The universe of hypertext servers.

  7. 6.3 Introduction to Internet • It is a network of the interlinked computer networking worldwide, which is accessible to the general public. • These interconnected computers work by transmitting data through a special type of packet switching which is known as the IP or the internet protocol. • The Internet, sometimes called simply "the Net. • The World Wide Web (www) is only a portion of what makes up the internet, but it is the fastest growing part of the internet. • The Web lets people, organizations and companies publish information for other people to see. This makes the Web a very useful tool for finding information on just about any topic.

  8. 6.3 Introduction to Internet • The Web is a large number of computer documents or "Web pages" that are stored on computers around the world and are connected to one another using hyperlinks. • These Web pages can be seen by anyone through their computer's "Web Browser," which is the program you are using now. • A group of Web pages that follow the same theme and are connected together with hyperlinks is called a "Web site." • Web sites and Web pages are written in a coding language that makes it possible to add pictures, sound and interactivity to plain old text, making people's reading experience more exciting.

  9. 6.4 What are the Browsers & Search Engines

  10. 6.4 What are the Browsers & Search Engines • Web browsers are programs used to explore the Internet. • There are many Web browser programs available including Netscape Navigator, Internet Explorer and Opera. • Internet Explorer is the Internet browser made by Microsoft and comes with Windows operating system. • A Web Search Engine is designed to search for information on the World Wide Web. • The search results are generally presented in a line of results often referred to as search engine results pages (SERPs). • The information may be a specialist in web pages, images, information and other types of files.

  11. 6.4 What are the Browsers & Search Engines

  12. 6.4 What are the Browsers & Search Engines • Google • is the most popular search engine in the world, and a multinational, publicly-traded organization built around the company's hugely popular search engine. • User can search for any information by writing what he is looking for in the search text box. • Google can view the searched information as a web pages, pictures and there is a part for Maps, YouTube, and news. • Google have its own E-Mail Application called “Gmail”.

  13. 6.5 What is E-Mail and How to Use it? Email: e-mail: electronic maila system for receiving, sending, and storing electronic messages preferred for both personal and business communication. • A-How To Create E-Mail The most popular e-mail programs in the internet world are Yahoo and Hotmail. • create a new account in one of these programs to make an e-mail by pressing on “Create New Account” to fill some information like personal information and pick up an e-mail address. • If no problems occurred such as missing information then the user can establish using the e-mail for sending and receiving information.

  14. 6.5 What is E-Mail and How to Use it?

  15. 6.5 What is E-Mail and How to Use it? • Messages sent by electronic mail normally reach a recipient’s account within seconds. • They frequently include more than just text; images and numerous types of formatted documents are now easily included as attached files. • If the user wants to read the coming emails he must press on “inbox” then pressing on the message. • If the user wants to write a message to someone then he must press on “Compose Message”.

  16. 6.6 What is Signatures & Signature Files a- Sending a Message • When the user wants to send a message he must know the e-mail address for the recipient in the other side. • There is a text box named be “To” to write the e-mail address in it. • the user can write the title of his message in a text box named by “Subject”. • He can write the message in the bigger text box and then press on “Send”.

  17. 6.6 What is Signatures & Signature Files b-Compose Message c-Attaching Files Also the user can attach a file which can contain a text, pictures or videos by pressing on “Attachment” button for attaching any file saved in the computer.

  18. 6.7 Internet Behavior and ETHICS • You shall not use internet to harm other people. • You shall not snoop around in other people's internet files. • You shall not use a internet to steal or hack. • You shall not use other people's internet resources without authorization or proper compensation. • You shall always use internet in ways that show consideration and respect for your fellow humans. • You should not upload articles that may scratch others psychological manners.

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