INTRODUCTION TO THE INTERNET

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THE INTERNET Is a network of networks Began in 1969 as ARPANET (Advanced

Research Projects Agency Network) No central authority and thus impossible to

state the precise size The Internet is not free just because you do

not pay for it

THE WORLD WIDE WEB A subset of the Internet consisting of all

computers with hypertext or hypermedia documents

These documents contain references (links) to other documents which may be on a different computer anywhere in the world

Began in 1991 at the European Particle Physics Laboratory (CERN) in Switzerland

A CLIENT/SERVER MODEL A server

Stores hypermedia documentsFurnishes documents upon request

A client Requests hypermedia documentsDisplays hypermedia documents

A browserEnables clients to display every document

from every server

CONNECTING TO THE INTERNET

At Work or SchoolVia a Local Area

Network (LAN) At Home

Traditional Modem (56KB)

Cable ModemDSL ModemWIFI

http://www.annex.com/southwest/museum.htm

Means of access,HyperText Transfer Protocol

Internet Address (Web site)

Document

Path (Directory or Folder)

UNIFORM RESOURCE LOCATOR (URL)

ACRONYMS ABOUND HTTP – HyperText Transfer Protocol is used to

transmit Web documents HTTPS – Secure protocol for confidential

transactions HTML – Hypertext Markup Language is the

language for all Web Documents ISP – Internet Service Provider

SUGGESTIONS FOR SEARCHING Use the Search button on the Internet

Explorer Toolbar Try multiple search engines on one query Be aware of logical operators - AND, OR, and

NOT Search on a concept; e.g., “first ladies” rather

than “Eleanor Roosevelt” Set Bookmarks/Favorites

E-COMMERCE Commerce is the exchange of goods and

servicesBuyer and sellerProducts and suppliersA place to “meet”Marketing to attract the buyerAccept and process the order

All of these elements are present in e-commerce and traditional commerce

ADVANTAGES OF E-COMMERCE

For the Seller:Open 24/7Shoppers from

anywhereVirtual inventory is

cheaper and extensiveLower transaction

costsTarget your customers

For the Buyer:Open 24/7Never leave homeEasy to view and

explore product lineComparison shopWeb site knows you

SECURITY AND PRIVACY Secure transactions

Https protocol Encryption

PrivacyA cookie is a small file written to your disk each

time you visit a siteWebsites download cookies to personalize your

experience on their site