Introduction to Window Understanding the Internet

Using email

Lecture 2

Chapter 2

Windows Desktop elementsWindows Desktop elements

TotalLab v1.10.lnk

Icons

Icons

Task bar

Windows Desktop elementsWindows Desktop elements

IconsTask bar

Start … pop-up menu

NetworkShortcutsRecycle bin

Title barMenu barTool barMinimize, maximize, exitScroll bar, arrows and boxStatus barApplication workspace

Menu barMenu bar

ToolbarToolbar

Title barTitle bar Min, Max, ExitMin, Max, Exit

Scroll bar, box, arrowsScroll bar, box, arrows

Status barStatus bar

WordPad window details

Windows ExplorerWindows 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

Want to understand more about internet? go to: http://www.cybergeography.org/atlas/

Want to understand more about internet? go to: http://www.cybergeography.org/atlas/

Internet:The Network of Networks

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

LANs and computers connected to the Internet are maintained by corporations, ISPs, and universities

who sell Internet subscriptions to the public.

LANs and computers connected to the Internet are maintained by corporations, ISPs, and universities

who sell Internet subscriptions to the public.

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

NSP: network service provider(IBM, MCI)

ISP or Host

(UCD, AOL)

Client

Internet elements

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.

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.

Netscape Navigator and Microsoft Internet Explorer are the two leading browsers.

Netscape Navigator and Microsoft Internet Explorer are the two leading browsers.

Internet Software

• Internet service– client & Server

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

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.

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.

User ISP

Client Server

Email Fundamentals

Telkom (TelkomNet) will do this for you, and guide you.

For other ISP’s you need to understand the settings, or

get customized files like TelkomNet

Telkom (TelkomNet) will do this for you, and guide you.

For other ISP’s you need to understand the settings, or

get customized files like TelkomNet

PC clientrunning Netscape

TCP/IP

PPP

PPPSERVER

MODEM

MODEM

Email Fundamentals

• Information for email:– username (whnuser)– password (random, #’s, $, change)– email address (dandy_2c@students.umm.ac.id)– 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