1 / 9

Internet Overview

Internet Overview. Fall 2007. What is the Internet?. A network of networks, bringing together people, information, hardware and software around the World. You can connect to the Internet:

varsha
Download Presentation

Internet Overview

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Internet Overview Fall 2007

  2. What is the Internet? • A network of networks, bringing together people, information, hardware and software around the World. • You can connect to the Internet: • dialing out to an Internet Service Provider (ISP) using SLIP (Serial Line Internet Protocol) or PPP (Point to Point Protocol). • directly through Cable Modem, DSL (Digital Subscriber Line), dedicated ISP connection, using TCP/IP (Transmission Control Protocol/ Internet Protocol). • dialing out to a computer connected to the Internet using a common communications package and using Internet packages in the remote computer.

  3. How does it work? • Through a Domain System Structure • for example an Internet address (URL) like home.ubalt.edu tell us that this address: (a) belongs to the .edu -- education -- domain, (b) is part of a network called ubalt (of course the name of the UB network), and (c) that the machine (computer) name is home. • there are many different (top) domains like gov, mil, com, net, etc, with new ones being addedpresently. • each computer is assigned an IP number, like 198.202.0.35 -- the home.ubalt.edu IP number. • a computer with a Fully Qualified Domain Name (FQDN) has a fixed IP number and name registered in the Internet.

  4. What can you do in the Internet? • Communications • Information search • File manipulation • Remote control of other computers • Cruise the Net through hypermedia • Electronic Commerce

  5. Communications • Send/receive e-mail: the main use of the Internet. • Send/receive Chat roomand Instant Messages: same time message exchange. • Participate in Web Forums: discussions, help and information. • Participate in Online Communities: Facebook, MySpace, YouTube. • Participate in Audio and/orVideo Conferencing: same time voice and/or video communications. • Participate in mailing and discussion lists and newsgroups: you can get help and receive news.

  6. Information search • Web search engines like Google, Ask.com, etc. • Web site directories (portals) like Yahoo, MSN, etc. • former tools like Gopher, Veronica and WAIS are rarely used today.

  7. File transfer and remote control • Web browser: the number one way to download (save a file to a local machine). At UB you can also upload files to your Web space. • FTP: the File Transfer Protocol is the most used mean to upload files in the Net, and a close second to Web browser in file downloads. • Telnet/SSH: allows you to login remotely in another computer you have an account and execute command line, non-graphical, commands.

  8. Hypermedia Net surfing • The Internet graphical user interface: the World Wide Web. • Main browsers: Internet Explorer, Firefox and Netscape. • Most commonly used tool, as you know since you are reading this.

  9. Electronic Commerce • Use of the Web graphical interface and technology as a front-end to a business. • traditional businesses with Web storefronts. • new businesses with no or very few brick and mortar storefronts -- the .com companies. • The basis of the new Digital Economy. • A very important use of the Internet, second only to communications and online communities.

More Related