Internet Basics ...

Introduction to the Internet and the World Wide Web
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Introduction - Internet & Web Basics
What do users of the Internet do with the Internet?

Consumers (us) - How did you ever manage a Friday evening of fun without an ATM.

Oh, the humiliation of asking the gas station attendant for a map, when you should be clicking on Mapquest and printing a custom one with directions listed and a map. The barbarism of pulling over to a pay phone and looking up the Highway Patrol Road Conditions phone number in the Yellow Pages for weather conditions (if the page wasn't torn out), when you could simply click the Heavenly Valley ski website and follow all the links for information on anything from snow depth to road conditions to open trails.

How did you ever drink a cup of coffee at Starbucks without being able to use the "T-Mobile Hotspot" (now AT&T Wireless) high speed wireless Internet access?

Can you remember when we had no pagers, no cell phones, no stock quotes on our PalmPilot, Blackberry or iPhone, no podcasts, no 24/7, only 7-11. No Internet! In fact the World Wide Web is less than 13 years old for browser access to the Internet for most individuals, around 1995!

The world, a closed book, your room a dungeon and your life...darkness and friendless without streaming news, sports updates, MySpace, Facebook.

How could you even survive without MP3 players, Napster downloads, iTunes? MyYoutube, Twitter and Tweets, online gaming, online dating? Shut off from society- no telephony, no Skype, no Instant Messaging.

Robin Williams says, in her book The Non-Designer's Web Book, "Yes, what you've heard is true--computers send messages to each other. The Internet is a vast collection of computers all over the world that store information and send it out."

How Did the Internet and Web develop? Where did they come from?
A Very Brief History of the Internet:
late 1970's ARPANET U.S. Department of Defense creates a wide-area network (WAN)
mid/late 1980's Government, academic institutions, private research labs, corporations and individuals were added
1984 1000 computers on the Internet
1989-1991 WWW developed by CERN (European scientists)
1993 First GUI interface, Mosaic using icons, popup menus, rendered bitmapped text, links, color images, sounds animation and multimedia
1994 Netscape realizes Mosaic isn't using all the "stuff" and creates the new standard for browsers
Nerds 2.0.1 A PBS History of the Internet (http://www.pbs.org/opb/nerds2.0.1/)
Yale.edu Short History of the Internet by Bruce Sterling
 
A Very Brief User's History of the Internet:
Where is the Internet going?

Internet 2 is a media generated term that is meant to imply that the electronic standards for improving the Internet are, in fact, being improved and being worked on by a "consortium" of businesses, governments, educational and research institutions and leaders worldwide. Standards are thought to be developed for:

Speed, connectivity, electronic universal languages, technology, physical infrastructure and so on.

In fact, they are not.

| Internet2 (Not) | Internt2Abilene (Is) | Internet2 FAQs |

Some of the main organizations running the Internet and contributing to its architecture and use include:

 
 
Internet Architecture Board (IAB)
Oversees Internet protocols and procedures and the creation of Internet standards.
 
W3C, World Wide Web Consortium
An industry consortium run by MIT that develops standards for the evolution of the Web. Registrars ...
ICANN
Internet Corporation for Assigned Names and Numbers (supersedes some IANA functions) and list of Accredited Registrars.
InterNIC at Network Solutions
Directory and Databases.

Web 2.0 is user driven form and content on the Web as opposed to organization driven content. From this point of view the internet information has four primary sharing patterns:

  1. one-to-one,
  2. one-to-many,
  3. many-to-many,
  4. and many-to-one.

Technologies to meet all four of these design patterns are evolving and include (RSS blogs, RSS Feeds, wikis, tagging, IM, Flickr, Twitter, MySpace, Facebook, Social Networking sites, Shared bookmarking like del.icio.us, and chat as examples.

In Summary - What do users of the Internet do with the Internet?

Shopping, entertainment, selling, banking, exchanging information, social networking, play, advertise, pay, and much more.

The Top Google Searches by year (Every year, Google compiles a huge list of its top searches; this list is known as the Google Zeitgeist.)
http://websearch.about.com/b/2008/12/12/the-top-google-searches-of-2008.htm

Okay - What is the Internet?

There are perhaps 900 million - over a billion connected computers that make up the Internet as backbone computers and domain servers (Hosts) - computers with a registered IP address. This isn't counting the temporarily connected computers that log on and off, like the one you are using now.

As noted above, these computers talk to each other using an electronic language TCP (transmission control protocol) and set of rules called Internet Protocols for identifying specific servers and sites addresses (IP for short). There is much more to it than that, but essentially, we use the Internet and its parts to send and receive, exchange and share information.

By December 31, 2008, 1.574 billion people were using the Internet according to Internet World Statistics.

Is the Internet the same thing as the World Wide Web? NO!

The WWW is a part, a small part actually, of the Internet. It is one type of information exchange and not the most popular...just the most talked about.

Let's look at the Internet and distinguish it from the World Wide Web. The following chart show the major types of information exchange protocols on the Internet. Which is the biggest?

WWW - World Wide Web GUI Interface for processing client requests. Uses HTTP - hypertext transfer protocol (uses TCP/IP layer - Transmission Control Protocol/Internet Protocol)Allows users to ask for, access and open billions of webs pages (text and graphics) and more billions of other types of files (sound, pdf, animations, streaming, etc)
Email For one-to-one or one-t-few exchanges , OR for e-mail mailing lists up to hundreds.
Listserv Listserv (or list servers) subscription delivery for one-to-many exchanges (very many, millions even), either moderated or un-moderated.
IRC - Internet Relay Chat Real time (or near) text on screen communications in virtual spaces (designed) called chat rooms. May allow use of microphones and speakers to speak verbally. A variation is video-conferencing
FTP - File Transfer Protocol Upload and download files and graphics, data from databases (banking and payments, info in general) from one computer to another.
Telnet Connect to and use a remote machine's resources.
Usenet Newsgroups Bulletin Boards and  (threaded) Discussion posted to a Web Page (uses "forms" or email) Also allows newsfeeds via the groups newsreaders
Social Networking IM, Bogs, Photo Sharing, wikis, dating, global bookmarking, personal sites, syndicating info through RSS, etc.
Streaming audio and video Instead of loading the large files to your hard drive your computer's memory buffer allows you to load just enough information from the large multimedia file to play the audio or video as it is being received. Once played, the info is erased from the buffer
Search Tools Directories,
Search Engines, 
and Meta Tools (which search multiple engines and directories at once).
Server Protocols - Note: Web browsers can speak to servers using all these protocols as well as http FTP - file transfer protocol. Transfers large files of all types but doesn't open them.
Gopher - an early system of campus information  protocols. Evolved into Mozilla/Netscape then Windows Explorer and Firefox, etc.
NNTP - read and distribute posted Usenet  BB's. (uses TCP/IP layer)
WAIS - document search & retrieval system.
Telnet - text based systems.
SMTP - e-mail messaging. (uses TCP/IP layer)
RSS - Rich Site Summary uses XML to syndicate a publishers info and send it to your desktop: news headlines, stock quotes, weather reports, etc.
Others
What kinds of Files are commonly used on the Internet?
Here is a great link to look up file types and the associated software or technology they are created with. FileInfo.com
What are the Internet Protocols (electronic rules and languages) and Technologies?
  • The Internet - A network of networks. Intranets and extranets are subsets of the Internet that can only be viewed by certain groups.

    The Internet is not just computers (the backbone is the servers and host machines). It is the Routers that sort the transmission from source to destination, the Telecommunication Systems that carry the transmissions (telephone line, satellite, WiFi, fiberoptic lines, Cable and so on), the ISPs, aka Internet Service Providers,that give users like use temporary access to the Internet called Connectivity, The electronic languages, translators and Protocols that allow machines to speak to each other, and the Tracking and Sorting done by the IP Address and DNS computers.
  • Intranets - Private networks (servers, Websites, databases) sharing products, software, calendars, front ends to databases, file and software sharing, email, and so on. You're on one now. Often called a LAN or Local Area Network.
  • Extranets - Partnerships of linked intranets
  • WiFi - Wi-Fi is a registered trademark specifically referring to any "wireless" local area network (WLAN). It does not stand for Wide Fidelity. It is radio wave frequencies requiring a transmitter and receiver. Short range (Bluetooth) systems extend a few hundred feet and are used for wireless household WLANs, Local "hotspot (hawknet or coffee shop hotspots) and gaming devices (Guitar Hero controllers on the XBOX). Longer range systems (cell phone towers0 extend several miles and are used for cell phones, PDA, iPhones, Blackberries and such.
  • Client - A computer operated by an information consumer aka operator (you). As a user, you are part of the Internet, but only temporarily, and if your computer broke down no one would know or care or be affected. Your Computer - An access point to the Internet but not a "stop" on the "information highway." aka the "client" in a client-server relationship
  • Server - A Computer/information provider. It is part of the Internet "highway." AKA the "server" in a client-server relationship

    The Client/Server Relationship - A server is a computer on steroids and amphetamines (fast, powerful, sleepless - connected to the Internet 24/7) that "serves" pages through the Internet upon request by the user operating a client computer
      Server Characteristics Client Characteristics
     
    • hardware and software
    • Lives in a closet
    • not person friendly
    • operated by software
    • acts like a chauffeur, leaning against the limo, waiting
    • acts like a waiter running from table to table serving
    • hardware and software
    • operated by a person
    • lives in a ...
    • acts like a ...

  • ISP - Internet Service Provider. A company that provides you with a connection to the Internet servers (connectivity)
  • modem/phone line - if you connect to the Internet from you home computer, you need a modem (hardware and software driver) and a phone line/cable/wireless connection to send and receive messages. There are many types to choose from - dial-up, DSL, ISDN, Frame Relay, cable, etc.
  • TCP/IP - Protocol for how computers find each other, identify themselves, and converse through electronic transmission.
  • http - hypertext transmission protocol is how the browser on your computer finds the webhost machine with the website you want to see and sends it to your and opens and displays the associated files.
  • Web Page - A single document (file) on the Web
  • Web Site - A collection of related Web pages.
  • Homepage - The first page  you see when you visit a site; the front door. Sometimes called or preceded by a splash page.
What type of servers are on the Internet?

Servers - Up to this point, we have focused on web page servers, servers that primarily serve up a certain type of file format, html files predominately and and few other types such as jpegs and gifs (graphic formats). The browser then displays the file as a formatted web page and places the graphics on the page. You need other types of servers as well.

Types of Web Host Servers User Tasks for Server Info

DNS Servers

  • Database servers for naming servers and websites on servers and finding them

Webpage Servers
(aka IP Servers)

  • Catalog Inventory and related Info - products, price, sizes, availability, etc.
Secure Servers
  • Process real time payment systems
  • Store encrypted information
Database Servers
  • Store & Retrieve Order Info
  • Track Orders and order status
  • Customer History - recognize customer, shopping cart info, past pages visited, customer delivery and order data, etc.
  • Store general information
FTP Servers
  • Transfer large files on the Internet but don't open and display the files

Email Servers

  • Pop = outgoing
  • SMTP (or Mime) = Incoming
       
  • Suggestive Selling - coupons, discounts, communications, autoresponders, etc
Chat Servers
  • Customers exchange information
  • IT Site support

Usenet Newsgroups
(aka Bulletin Board Servers)

  • Customers post and respond
  • Website information posted

Listserv Servers

  • Website distributes Newsletters
  • Coupons
Applications Servers
  • a server computer in a computer network dedicated to running certain software applications
    more information
   

What does the Internet look like?