INTERNET AND E-MAIL

Internet Is a global connection of computers/hosts via a huge NW of telecommunication links.

The Internet allows one to access to a whole resource of data and information stored at different sites in the world

Importance of Internet• Provides speedy and inexpensive means of

communication.

• Provide access to World wide information on different issue.

• Gives access to news and information e.g. From www.ippmedia.com

• Offers the best media for advertisements.

• Education resources in different subjects and education centers advertisements

etc.

Basic Terms

• Computer Network

Is a group of computers connected together by network cables sharing information.

• Server

Is a computer that provides internet services to other computer in the network.

• Web Browser

This is a software which gives you access to World Wide Web (www).

• Host

Is that computer which is globally connected to other computers

• Common web browsers used are(i) Internet Explorer(ii) Netscape Navigator

Uniform Resource Locater (URL)

Is a means of specifying the pathname for any resource on the internet.

E.g. http://www.udsm.ac.tz

http://www.bbc.co.uk/swahili

3 ways of entering URL:-• World Wide Web (WWW)

Is a collection of host machines which delivers documents, graphics and multimedia(sound, video) to users via the internet.

• Hypertext Markup Language (HTML):-

This is a language which was designed for creating web

pages which contain hyperlinks.

Domain

• Domain is the unique name of a computer on the Internet that distinguishes it from the rest.

• Standard organization abbreviations: .com Designates a Commercial site .gov  Designates a Governmental site .mil   Designates a Military site .net  Designates a Networks Services site .edu  Designates an Educational site .org  Designates Other Organizations

Searching Information From The Internet

There are basically 2 ways to search information from the Internet:-

• Using Search Engine

• Using Web Directories

Using Search Engine

• These are web software that are useful for searching information

• You just type your query at a search engine using correct English sentence

• Then click search button

Examples of Search engine websites

www.yahoo.com

www.mamma.com

www.google.com

www.alltheweb.com

www.altavista.com

Requirements for Internet Connection

• The following are required for connecting a computer to the internet:

• (i) Media For The Connection • (ii) Internet Service Provider (ISP)• (iii) Software • (iv) Web browser

Electronic Mail (E-mail)

   Is a system for sending and receiving messages all over the world.

• It allows you to electronically create a message, indicate the recipient’s address, send it and receive a reply

Creating an e-mail account

• An E-mail address is composed of the username, the machine name, the network and the top-level domain name

• username@machine_name.network.top-level_domain

Creating an e-mail account

• Open the website e.g www.yahoo.com• Click on Mail• Click on Sign Up Now• Fill the registration form• Submit the registration form• Click Continue to Yahoo Mail

Note: Sign out once you finish reading you mails.

Basic terms in your Account Page

• Check Mail – check the incoming emails

• Compose – send emails

• Addresses – store other people’s addresses

• Inbox – store incoming emails

• Trash – Unwanted emails

• Mail Options - Customize your account

Inbox

• Click on Inbox hyperlink • Click on the subject to open the

incoming messages• You can reply, forward it to another

person, delete it or go back to your inbox to read other emails.

Compose

• Basic Terms • To – receiver’s e-mail address • Cc – carbon copy sent to people who should

be aware of this email • Bcc – blind carbon copy • Subject –summary of the message• Attachments – send files stored in your

computer together with the email • Send – click send button to send your email • Sign out-enables you to quit the mail

Log in to your account

• •    Open the website address• Click on Mail• •    Type the e-mail address and • the password• •    Click Sign in button

Forwarding Messages

• Select a message to forward

• Click on Forward

• Type the e-mail address, subject and supporting message

• Click Send

Saving an Attachment

• Download the attachment

• Choose Save the file to a disk

• Specify the disk drive

• Click Save

Sending Attachments/Files

• Type the e-mail address, subject and main message

• Click Attachments • Click browse to specify the of file name and

location • Click Attach Files, click Done• Click Send to send the attached file • Display back the inbox

Opening the Address Book

• Click on Addresses

Adding Contact to the Yahoo Address Book

Send the message to a person

• Click Add to Address Book

• Type the name of the person

• Click Add to Address Book

Blocking e-mail address

• Click on Mail Options

• Type the e-mail address

• Click Add Block

Chatting on the Internet

• Double Click Yahoo! Messenger • Enter e-mail address and password• Click Log in