SSS TWO WEEK NINE LESSON NOTE(ICT_223)

 

SS 2

TOPIC: WIRELESS NETWORK

Introduction

Wireless refers to any type of computer network that is not connected by cables of any kind. It is a method by which homes, telecommunications networks and enterprise(business) installation avoid the costly process of introducing cables into building, or as a connection between various equipment locations. Wireless telecommunications networks are generally implemented and administered using radio communication. This implementation takes place at the physical level (layer) of the OSI model network structure.

Advantages of Wireless Network

         i.            Mobility: with a laptop computer or mobile device, access can be available throughout a school, at the mall, on an airplane etc.

       ii.            Fast setup: if your computer has a wireless adapter, locating a wireless network can be simple as clicking “connect to a network” in some case, you will connect automatically to networks within range.

    iii.            Cost: setting up a wireless network can be much more cost effective than buying and installing cables.

     iv.            Expandability: adding new computers to a wireless network is as easy as turning the computer on (as long as you do not exceed the maximum number of devices)

Disadvantages of Wireless Networks

       i.            Security: be careful. Be vigilant. Protect your sensitive data with backups. Isolated private networks strong encryption and passwords and monitor network access traffic to and from your wireless network.

     ii.            Interference: because wireless networks use radio signals similar techniques for transmission, they are susceptible to interference from lights and electronic devices.

  iii.            Inconsistent connections:  how many times have you heard ‘wait a minute, I lost connection’ because of the interference from lights and electronic devices.

   iv.            Speed: the transmission speed of wireless networks is improving; however fast options (such as gigabit Ethernet) are available via cables.



 

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