Transcript Introduction to Window Understanding the Internet

Lecture 2
Introduction to Window
Understanding the Internet
Using email
Chapter 2
Windows Desktop elements
Icons
Task bar
Icons
Windows Desktop elements
Icons
Task bar
Start … pop-up menu
Network
Shortcuts
Recycle bin
Title bar
Menu bar
Tool bar
Minimize, maximize, exit
Scroll bar, arrows and box
Status bar
Application workspace
WordPad window details
Title bar
Min, Max, Exit
Menu bar
Toolbar
Scroll bar, box, arrows
Status bar
Windows Explorer
•
•
File, document, and folder
management
Hierarchical structure
Understanding the Internet
•
•
•
•
•
Introducing the Internet
Internet Connection
Exploring Internet Services
How the Internet Works
Internet Software
Internet:The Network of Networks
Want to understand more about internet? go to:
http://www.cybergeography.org/atlas/
Exploring Internet Services
• Electronic mail (Email): Staying in touch
• World Wide Web (WWW): Accessing
information
– hypertext
– hyperlinks
– URL
Exploring Internet Services
• FTP: Transferring files
– FTP
– downloading & uploading
– anonymous FTP
– compression software
• Usenet: Joining online discussions
Introducing the Internet
• The Internet’s history
– importance of communication & socializing
– from ARPNET to Internet
– rise of a new mass medium
Introducing the Internet
• A galactic network
– Internet address or IP address
• 105.137.121.077 = home.umm.ac.id
– Internet service provider (ISP)
• Interoperability
– cross-platform network
LANs and computers connected to the Internet are
maintained by corporations, ISPs, and universities
who sell Internet subscriptions to the public.
Internet elements
NSP: network service
provider(IBM, MCI)
ISP or
Host
(UCD,
AOL)
Client
How the Internet Works: A Geography of Cyberspace
• Internet Service Providers (ISPs)
• Backbones
• Internet protocols (TCP/IP)
– Internet protocol (IP)
– transmission control protocol (TCP)
How the Internet Works: A Geography of Cyberspace
• Domain Name System (DNS)
– gov
– edu
– mil
– com
– net
– id
– ac
– co
See for yourself how the domain name
service operates. Access the
NSLOOKUP page and type in a domain
name such as www.microsoft.com. Click
the Run button, and you’ll see the IP
address below.
Internet Software
• Internet service
– client & Server
Netscape Navigator and Microsoft Internet Explorer
are the two leading browsers.
Accessing the Internet
• You will need:
– Computer
– Campus computing account
– Modem
• quality v.90 56K bps modems :$15 - $150
• if using other ISP’s check their list
• Settings
– UMMNet
– Software
– Other software
Making the connection
• UMMNet support for access
• Setting for dial-up connection:
– configure modem
– configure TCP/IP for dial-up
– configure dial-up connection (PPP)
PPP: point-to-point protocol
Email Fundamentals
• Email servers & clients
User
Client
ISP
Server
An e-mail server runs on your ISP’s computer. When you send
mail, the server sends your mail over the Internet. An e-mail
client runs on your computer and enables you to read and reply
to received messages, compose new ones, and forward mail.
Email Fundamentals
PC client
running Netscape
Telkom (TelkomNet) will do
this for you, and guide you.
TCP/IP
For other ISP’s you need to
understand the settings, or
get customized files like
TelkomNet
PPP
MODEM
MODEM
PPP
SERVER
Email Fundamentals
• Information for email:
–
–
–
–
–
username (whnuser)
password (random, #’s, $, change)
email address ([email protected])
POP server name (e.g. popmail.umm.ac.id)
SMTP server name (e.g. mail.umm.ac.id)
SMTP: simple mail transport protocol
POP: post office protocol
Pine vs. Webmail vs. Eudora
• Pine
– software and messages always reside on campus server
– subject to quotas
– accessible by telnet by direct network connection or dial-up
• WebMail like Hotmail or Geckomail
– requires web browser
– requires dial-up or DN connection
– SoftWare and messages reside on commercial server (where?!)
• Eudora
– requires dial-up or DN connection
– SW resides on your PC
– you can choose where each message resides; flexible
Using Email Responsibly
• How to stay out of trouble
– Do not use company email for personal use
– Do not give information you would not give by
phone or in a letter
– Open and send attachments with respect
– Never respond to junk email (spam)
– Never use email to harass or intimidate
– When using company’s email, never say anything
you wouldn’t want your boss to see