E-mail allows for fast electronic transfer of messages between computers using telecommunication networks. It saves time and money compared to traditional paper mail sent through postal services, which can take weeks to arrive. An email address consists of a unique user name, domain name of the email service provider, and is used to send and receive email messages through client software and email servers that communicate using protocols like SMTP, POP, and IMAP. While email is fast and allows file attachments, it lacks non-verbal cues and can spread viruses or junk mail. Modems convert digital computer signals to analog signals and vice versa to allow computers to communicate over networks.

1. PRESENTATION
ON
E-mail and Modem

2. What is an E-mail
O E-mail stands for Electronic mail.
O E-mail is used to transfer message from
one computer to other computer through
telecommunication
O Email saves money and time compared to
regular mail.
O An email message takes seconds to reach
destination.

3. What is Snail mail
O Snail mail is paper mail that is sent
through the postal service,
O It can take up to two weeks to arrive at its
destination

4. Snail mail vs E-mail
O Speed
O Writing
O Content
O Exact address
O Reliability

5. E-mail Address
O An email address consists of 3 parts
helloabc@gmail.com
Unique User Domain Name
Name company/organizatio
chosen by the email n providing the email
account owner service

6. Component of E-mail system
O E-mail client
It has two main functions
Sending an E-mail
Receiving an E-mail
O E-mail server

7. How E-mail works

8. How E-mail works (video)

9. Protocals used in E-mail
O SMTP
O POP
O IMAP
O MIME

10. Advantages of E-mail
O Speedy
O Attachments
O Avoids paper handling
O Group message delivery
O Economical
O Reliability
O An attractive email

11. Disadvantages of E-mail
O Lack of emotions
O Setup cost
O Junk mails
O virus

12. What is a Modem
O Modem stands for modem means
modulation and demodulation.
O Modem is an electronic device that
converts computer's digital information
into analog carrier signals and vice versa.
O Computers use modems to communicate
with each other over a network.

13. How Modem works

14. How Modem works(video)

15. Types of Modems
O DSL (Digital Subscriber Line) Modem.
O ADSL (Asymmetric Digital Subscriber Line)
Modem.
O SDSL (Symmetric Digital Subscriber Line)
Modem.
O Cable Modem.
O SatModem (Satellite Modem).
O Internal Modem
O External Modem