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=Section 4: Computer networks=

At the end of this topic you should be able to:
 * describe a router and its purpose
 * describe the use of WIFI and Bluetooth in networks
 * describe how to set up a small network involving access to the internet, understanding the need to set up the use of a browser, email and an ISP
 * identify the advantages and disadvantages of using common network environments such as the internet
 * describe what is meant by the terms user id and password, stating their purpose and use
 * identify a variety of methods of communication such as fax, email, and tele/video conferencing
 * define the terms Local Area Network (LAN), Wireless Local Area Network and Wide Area Network (WAN)
 * describe the difference between LANs, WLANs and WANs, identifying their main characteristic
 * describe the characteristics and purpose of common network environments, such as intranets and the internet
 * describe other common network devices (including hubs, bridges, switches and proxy servers)
 * discuss the problems of confidentiality and security of data, including problems surrounding common network environments
 * identify the need for encryption, authentication techniques, including the use of user identification and passwords, when using common network environments such as the internet

In groups, you will be responsible for finishing one page of the wiki. Make it visual and keep it simple!