1. Communications and Networks
Computing and Information Science

2. Electronic Communication
Electronic Communication is the process of sending and receiving electronic messages.
Electronic messages include electronic mail, text messaging and file transfer.

3. Text Messaging
The technical name for Text Messaging is SMS (Short Message Service)
Text messages are short messages up to 160 characters long which can be sent from one mobile phone to another through a messaging centre
As well as mobile phones, Text messages can also be received on devices such as pagers and some palmtop computers.

4. Sending a Text Message To send a text message you need:
Mobile Phone
An account with a service provider
To be in an area of sufficient signal strength to communicate with the service provider.
One key on a mobile phone has many functions.
A typical text message might include abbreviations which require fewer key presses.

5. Sending a Text Message Some examples of abbreviations could be:
2 To/too
bcnu Be seeing you
pls Please
Predictive Text tries to anticipate what the user will type.
Once the message has been composed, sending the message is just a matter of selecting the recipient mobile telephone number from the stored list on the mobile phone and selecting send.

6.
Electronic-Mail is a way of sending and receiving text-based messages over a network. Both the sender and the recipient have an address which identify them on the network.
Electronic mail is used mostly for sending letters, but anything which can be saved to disk can be sent by , such as graphics.

7. What is required for E-Mail
A computer system
Software - an client program or an Internet browser
An electronic mail address or mailbox
Access to the Internet if the is going outwith the local area network.

8. What is required for E-Mail
Software - an client program or an Internet browser.
client programs can be used to send and receive . These allow you to:
see a list of all messages in your mailbox by displaying the subject, time and date
select a message and read the
create new messages and send them
set up folders to manage your
keep an address book
add attachments to messages you send

9. What is required for E-Mail
Webmail
It is much more convenient to access from any computer that has an Internet connection.
Webmail allows you to access using an Internet browser program like Internet Explorer.
Hotmail is an example of Webmail

10. Advantages of
is much faster than sending a letter by post (snail mail)
is very accessible, since you can check electronic mail from anywhere in the world
There is no need to worry whether the person you are mailing is there to read the message because it will be stored by the system.
is cheaper than sending a letter by post.
You can send the same to lots of different people at once.
Less paper is involved, not all s need to be printed.

11. Disadvantages of E-Mail
You must check your mailbox regularly for the system to work
can be impersonal because there is much less interaction between the callers.
is not as secure as the postal system.
Junk is a huge problem. Junk or spam is from strangers or companies whom you have not asked to send you anything.

12. Netiquette Netiquette is short for network etiquette.
Etiquette is used to describe a certain way to behave.
Netiquette is concerned with the way messages are written and how others might interpret them.

13. Netiquette :-) :-( A number of rules have been set up.
Keep your messages short and to the point.
Be careful about the language you use in a message.
Use smilies (emoticons) to your messages to show your emotions.
:-) :-(
Avoid using capital letters as this is classed as SHOUTING.

14. Attachments
If you want to send somebody a file, you can ‘attach’ it to an
This means that the file is sent along with your
When your is received, the attachment can be saved by the recipient
Beware of opening attachments from people you don’t know. They may contain viruses. It is always a good idea to use a virus scanner on any attachments.