Transcript CIS 1150 Introduction to Computers

Chapter 2
The Internet, the Web,
and Electronic Commerce
Professor Michael J. Losacco
CIS 1150 – Introduction to Computer Information Systems
Overview
Chapter
2
Discuss Origins of the Internet & Web
Describe How to Access the Web
Discuss Internet Communication Types
Describe Search Tools
Evaluate Accuracy of Web Information
Discuss Electronic Commerce
Describe Cloud Computing
Describe Web Utilities
2/24
The Internet and the Web
Chapter
2
Origination
Originated as ARPANET in 1969
Goals
Allow Scientists in Different Places to Collaborate
Function Even if Part of Network Disabled
Renamed Internet in the Late 1980s
World Wide Web Introduced in 1991
Tim Berners-Lee
3/24
The Internet and the Web
Chapter
2
Web 1.0
Link Existing Information
Web 2.0
Dynamic Content Creation
Social Interaction
Web 3.0
Computer-generated Information
Locate & Integrate Information
Require Less Human Interaction
4/24
Access
Chapter
2
ISP (Internet Service Provider)
Provide Connection to Internet
Browsers
Provides Interface to Internet & Web
Netscape Navigator
Microsoft Internet Explorer
Mozilla Firefox
Safari
Chrome
5/24
Access
Chapter
2
Addressing
Internet
IP Address
Identifies Device Connected to Internet
Domain Name
Text Version of IP Address
6/24
Access
Chapter
2
Addressing
Web
URL (Uniform Resource Locator)
Unique Address for Page Located on Web Server
7/24
Access
Chapter
2
Addressing
TLD (Top Level Domain)
Identifies Type of Organization
ccTLD
Two-letter Country Code Outside US
ICANN Assigns & Controls TLDs
DNS (Domain Name System)
DNS Server
Translates Domain Name to IP Address
8/24
Access
Chapter
2
Technologies Employed
HTML (Hypertext Markup Language)
CSS (Cascading Style Sheets)
JavaScript
AJAX
Applets
9/24
Web Utilities
Chapter
2
Plug-ins
Additions that Extend Browser Capability
Filter
Restrict Access
File Transfer
Upload / Download To / From Others
BitTorrent
Distributes File Transfers Across Multiple Computers
10/24
Communication
Chapter
2
E-mail
Client-based / Web-based
4.3 Billion Clients
144 Billion E-Mails Sent per Day
Spam Blockers / Filters
68.8% Spam
50.8% Pharmaceuticals Spam
royal.pingdom.com 1/13
11/24
Communication
Chapter
2
Text Messaging
Short Messages <160 Characters
SocNet (Social Networking)
Connect People with Common Interests
Facebook
Google+
LinkedIn
Business Oriented
12/24
Communication
Chapter
2
Blog (Web Log)
Online Diary
Theme / Hobby Information
Microblog
Twitter
Webcast
Broadcast Live Event
Wiki
Allow Visitors to Edit Site Content
13/24
Search Tools
Chapter
2
Search Engine
Search for Word / Phrase
Spider / Crawler / Bot
Ranks Keyword Relevance
Specialized
Content Evaluation
14/24
Electronic Commerce
Chapter
2
Business-to-Consumer (B2C)
Online Banking
Financial Trading
Shopping
Consumer-to-Consumer (C2C)
Auctions
Business-to-Business (B2B)
Manufacturer-Supplier Relationship
M-commerce
Mobile Device Used for Transaction
15/24
Electronic Commerce
Chapter
2
Security
Credit Card
Fraud
Digital Cash
Converted Through Third Party
e.g., Paypal
16/24
Cloud Computing
Chapter
2
Shift Location of Programs & Data
From User to Internet
Available to Any Internet Client
No Need to Buy / Install / Maintain
Programs & Data
17/24
News
Chapter
2
Preferred News Source
18/24
Media
Chapter
2
Preferred Media Source
19/24
Internet Crime
Chapter
2
Losses by Victims of Internet Crime in 2014
20/24
Internet Use
Chapter
2
U.S. Teen Internet Use Frequency
21/24
Cyberbullying
Chapter
2
Types
Gossip
Exclusion
Impersonation
Harassment
Cyberstalking
Outing
Cyberthreats
22/24
Cyberbullying
Chapter
2
52% Reported Being Cyberbullied
52% of Teens Do Not Inform Parents
Bureau of Justice Statistics 5/13
13-year-old Commits Suicide (10/06)
Unwanted Sexual Experiences
24% Reported Internet Sexual Harassment
Ages 12-16
U of Michigan 1/16
23/24
Careers in IT
Chapter
2
Webmaster
Develop and Maintain Websites and Resources
Involved In Design, Monitor Traffic
Bachelor's Degree in Computer Science
Knowledge of HTML and CSS
Annual Salary of $56,000 - $80,000
24/24