Page 87 - AI Ver 1.0 Class 9
P. 87

Task


                 1.  Explain any two types of protocols.
                 2.  What is the use of a web browser?
                 3.  What are the differences between a web client and a web server?
                 4.  Write any two applications of Internet.




                    Email

            Electronic mail is the most popular and convenient way of sending and receiving messages through the Internet. It
            takes no time to deliver a message in the inbox of any email service provider like Gmail, Yahoo, Outlook, Hotmail,
            etc. Nowadays, it has become a cheap and an effective way to keep in touch with your family and friends. In an
            organisation, there is no need to maintain the log of the official letter sent to different employees working at
            different hierarchies manually.

            Differences Between Postal Mail and Email

            Following are some differences between postal mail and email:
               • Postal mail is the traditional way of sending physical mail which takes a few days to deliver. Email is the fastest
              way to send digital messages all across the world within a fraction of seconds.
               • Postal mail is chargeable and the cost increases with the distance and the weight. If you are planning to send
              some magazines, brochures, photo album, then, the cost will increase. In Email, we pay only for the Internet
              with no extra cost of the email services. So, it is the cheapest way to send mail with bulky content. You can send
              photos, audios, videos, animation, documents, etc. as an attachment easily.

               • In postal mail, if you have to send the same letter to multiple recipients, then, it is an expensive process. Through
              email we can send the same mail to multiple recipients by just writing the email address in cc or bcc with no
              added cost.
               • In postal mail, the recipient can receive a mail only at the marked geographical location using street number,
              locality, city, pincode, etc. In email, it is a logical address that can be accessed from any computer and at any
              location all over the world.


            Advantages of Email
            The following are the advantages of using email:
               • Sending and receiving emails is a fast way of communicating as compared to the traditional mails.
               • Emails can be sent anytime. That means it’s not restricted to only working days or working hours.
               • Emails can be sent to one or multiple recipients without much effort and at no cost.
               • It is an inexpensive way of mailing as it only requires an Internet connection.


            Components of Email Address
            An email address is a unique logical address of an email account in any email service provider. A user can send and
            receive messages using an email address. It is made up of:
               • Username: It is a unique name which is not case sensitive and spaces are not allowed.
               • @sign: It works as a separator of the username and domain name in an email address.
               • Domain name: It is the name of the email service provider. For example— gmail, yahoo, hotmail, etc.


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