Transcript E – Mail
E – Mail History of E-Mails What is an E-Mail? What happens when we sent an E-Mail? E-Mail messages E-Mail Folders E-Mail Address Attachments Types of E-Mails E-Mail Requirements Advantages and Disadvantages History of E-mails E-Mail is one of Internet’s communication methods According to Darwin Magazine, the first e-mail was sent in 1971 Ray Tomlinson created the ability to send e-mails to anyone connected to the Internet by using the now common e-mail address with the “@‟ symbol. What is an E-Mail E-Mail stands for Electronic Mail This is a program used to send and receive text messages The messages are sent over the Internet and received within a fraction of a second What happens? When we send an email message the message does not simple go right to the recipient The message has a path way to go through E-mail Message An e-mail message is basically a text file Thanks to technology we can now attach files and folders to our e-mails e-mails save a lot of money spent on stamps and postage costs e-mails also help the environment as less paper is used Email Folders Inbox – this holds all the received messages from known contacts Outbox – this holds all the messages that have been sent from your email Spam – this holds all the messages that have been sent by unknown contacts Trash – this holds all the messages that we have deleted Flagged – this holds all the messages that have been marked as important E – Mail Addresses Each e-mail address must be unique An e-mail is made up of the; 1. The Username this is chosen by the user 2. The Domain part which is found after the ‘@’ symbol. This is the name of the host of the email service [email protected] Attachments An attachment is a function of adding a picture or other document to our emails We could also send a number of files attached to one email We attach multiple files by compressing them Types of E-Mails There are two main types of e-Mail: 1. E-Mail services which are accessed by a standalone applications such as Outlook 2. Free e-Mail services which are accessed through a web-site. Such as Yahoo!, Google, and Hotmail. E-Mail Requirement In order to send an e-mail an e-mail server is required This e-mail server needs to have two services: 1. 2. SMTP (simple mail transfer protocol) which is used to send e-mails. POP3 (post office protocol 3) is used to receive e-mails. Advantages of E-mails 1. 2. 3. 4. 5. Speed Asynchronous: communication does not occur at the same time. One can reply/read emails at his/her convenience unlike realtime chatting Cheap: many companies such as Yahoo!, GMail, Hotmail offer free e-mail services. The same message can be sent to a large group of recipients. Environmental Friendly Disadvantages of E-mails Not everyone has an e-mail address whereas by using normal post, everyone can be reached 2. Privacy: threat to privacy and security, if the password is known there will be total access to the e-mails and account data 3. SPAM: this is very common and very difficult to get rid of 4. Only Virtual Messages: no tangible products can be sent. 1.