Networks

Networks

1. Intranet: This is a restricted computer network created using WWW software

   • Pros: 1) Commercial or confidential data is kept secure within the organization
     • 2) Emails remain private and may also be encrypted.
       • 3) High bandwith
   • Cons; High cost of initial installation
     • 2) Special software might be neede or internet and email.
       • 3) High cost of mentainance requiring skilled personnel

2. WLAN: This is a kind of a LAN except that it connects workstations using radio signals instad of cables.

   • Pros: 1) Accessable from wherever the wireless signal can be detected.
     • 2) Easy to connect to a Wireless LAN
       • 3) Much more cost effective than buying and installing cables.
   • Cons: 1) Much more prone to unauthorized access compared to other network types
     • 2) As the number connected to the network increases, the speed decreases
       • 3) Possible interferences form electronic devices and radios.

3. LAN: This is a group of associating devices connected by a common communications line

   • Pros: 1) Workstations can share peripheral devices like printers.
     • 2) They don’t need to go back to the same workstation all the time.
       • 3) User can save their work centrally on the network’s file server.
   • Cons: 1) Networks are difficult to set up and need to be maintained by skilled technicians.
     • 2) If the file server develops a serious fault, all the users are affected
       • 3) Special security measures are needed to prevent unauthorized access

4. Internet: This a global computer network providing access to billions of resources around the world ins econds.

   • Pros: Vast amount of information of every subject.
     • 2) Free and fast email service
       • 3) Access to remote resources from your home
   • Cons: Widespread wrong information on the internet
     • 2) Piracy and other cyber crimes are major drawbacks of the internet.
       • 3) Can demotivate young people to socialize in real llife

5. Bluetooth: A standard for the short-range wireless interconnection of mobile phones, computers, and other electronic devices.

   • Cons: 1) Battery consumption - can drain your phone battery when when left on all day.
     • 2) Connection speed cn be relatively slow compared to other means.
       • 3) Security threats - Bluebugging and Bluejacking
   • Pros: 1) Easy to use, simple and well known technology.
     • 2) No extra charge. Just need to buy a device with the technology.
       • 3) Cord free. No extra cost and mess to set up wires.

6. WAN: A network which spans over a large geographical area. It typically consists of 2 LANs

   • Pros: 1) Covers a large area for long distance businesses.
     • 2) Date and resources can be shared.
       • 3) Users can communicate with other on the network
   • Cons: 1) Setting up a network can be an expensive and complicated experience.
     • 2) Security need to be consistently mainstained.
       • 3) Once set up, maintaining the network is a full time job requiring experts.