REFERENCE

* Book ~ Score A <INFORMATION AND COMMUNICATION TECHNOLOGY
               (SPM)>
            ~ Discovering Computers2007
* Websites ~ http://en.wikipedia.org/wiki/Communications_protocol
                  ~ http://en.wikipedia.org/wiki/Wireless
                  ~ http://en.wikipedia.org/wiki/Wired_communication
                  ~ http://en.wikipedia.org/wiki/Hypertext_Transfer_Protocol
                  ~ http://en.wikipedia.org/wiki/Simple_Mail_Transfer_Protocol
                  ~ http://en.wikipedia.org/wiki/Post_Office_Protocol