Hubs and switches - They look similar but they handle signals differently, Local Area Network (LAN) - Easy to setup, inexpensive and it is limited to a small geographical area., Wireless Local Area Network (WLAN) - It works without cables so is useful where computers and devices are moved around quite often. Slower than a LAN., Wide Area Network - It is not limited to any geographical area., Network Hardware Devices - Include hubs, bridges, switches and routers., Networks - They are valuable because they allow hardware like printers to be shared, as well as sharing of software and of files., Browsers, Email Software and ISP - They make communication over the internet possible., WiFi and Bluetooth - They are wireless forms of communication on a network., Fax, Email and Video-Conferencing - They are methods of communication, Intranets - They are set up by organisations and access to them is strictly controlled., IDs, Passwords and Authentication Techniques - They are used to identify users to networks., Passwords, Firewalls and Encryption Techniques - Used to protect data.,

(Lesson) Computer Network Summary

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