1. Email – Purposes & Uses 20 Email – Purposes & Uses 20

2. Email – Purposes & Uses 20 Email is part of everyday life But could you explain how messages travel across the Internet? We’ll start by looking at the basics of email plus advantages & disadvantages Then we’ll move into to more technical aspects, such as email protocols For a start, we’ll focus a bit of history…

3. Email – Purposes & Uses 20 1960 1970 1980 1990 2000 2010 The Internet Born: 1969 The Web Born: 1989 www Email Born: 1971 @

4. Email – Purposes & Uses 20 This is the Queen sending an email in 1975! Note the word on the wall – it says ‘ARPANET’

5. Email – Purposes & Uses 20 So email has been around since 1971 That’s way before the Web! Sending emails seems immediate But it actually happens in stages… When one person sends a message, it is stored on email servers When the receiver logs-on, message are forwarded (or downloaded) to them So emails use the store & forward system…

6. Email – Purposes & Uses 20

7. Email – Purposes & Uses 20 B Email Server A Store & Forward Messages are stored on the email server & then ‘forwarded’ when the receiver clicks to download

8. Email – Purposes & Uses 20 Email Server Don’t both need to be online at same time So can use email at time that suits you! Different to Instant Messaging or VoIP

9. Email – Purposes & Uses 20 Emails are sent from an sender’s outbox and received in a recipient’s Inbox The sender & recipient do not have to be online at the same time That’s great when sending emails to people in different global time zones This applies to staff in a big company, as well as families & friends

10. Email – Purposes & Uses 20 Send Attach Address Book High/Low Priority CC – Send a copy to another person

11. Email – Purposes & Uses 20 Advantages Attachments You can attach multiple files, such as images or documents

12. Email – Purposes & Uses 20 Advantages Copy Use ‘cc’ and ‘bcc’ to send a ‘copy’ of a message to multiple other people.

13. Email – Purposes & Uses 20 Advantages Contacts ‘Address books’ store contacts & you can also use distribution lists to email lots of people simultaneously

14. Email – Purposes & Uses 20 Advantages Delivery Speed Emails usually arrive in seconds – much faster than traditional post

15. Email – Purposes & Uses 20 Advantages Webmail Gmail & Hotmail use cloud servers so can access email anywhere

16. Email – Purposes & Uses 20 Disadvantages Junk Email - Spam Spam or ‘junk’ email has become a massive problem fo people

17. Email – Purposes & Uses 20 Disadvantages Viruses from attachments Attachments can contain code designed to harm your computer

18. Email – Purposes & Uses 20 Disadvantages Phishing Emails from fake banks & businesses sent as a scam

19. Email – Purposes & Uses 20 Disadvantages Delayed Reply Email isn’t real time so you can’t expect an instant response

20. Email – Purposes & Uses 20 Disadvantages No Access Not everyone has email – or they might not logon regularly

21. Email – Purposes & Uses 20 Email – Purposes & Uses 20

22. Email – Purposes & Uses 20 Email – Purposes & Uses 20