Network

Network

1. Personal Area Network (PAN)

   • A personal area network - PAN is a personal devices network equipped at a limited area.
   • PAN ordinary has such mobile devices: cell phone, tablet, laptop. That type of network could also be wirelessly connected to Internet.
   • A personal area network handles the interconnection of IT devices at the surrounding of a single user. Generally, PAN contains from following such appliances: cordless mice and keyboards, cordless phone, Bluetooth.
   • PAN is expedient, lucrative and handy.
   • Sometimes has a bad connection to other networks at the same radio bands.
   • Bluetooth networks have slow data transfer speed, but comparatively safe.
   • Bluetooth has distance limits.

2. Local Area Network (LAN)

   • Local Area Network as school, office, home network etc.
   • This is a connection of computer and devices
   • Confined to one site
   • Each device on a network in know as a node (e.g. computer, printer etc.

3. Personal Area Network (PAN)

   • (PAN) is the interconnection of information technology devices within the range of an individual person, typically within a range of 10 meters.
     • For example, a person traveling with a laptop, a personal digital assistant (PDA), and a portable printer could interconnect them without having to plug anything in, using some form of wireless technology.
   • In another usage, a personal area network (PAN) is a technology that could enable wearable computer devices to communicate with other nearby computers and exchange digital information using the electrical conductivity of the human body as a data network
   • Every information which are stored in the devices which are shared via network with authorized peoples only. So there is secure file transfer between devices. Read more:
   • In this lot mostly devices are used for communication. wireless uses microwave signals as medium for make communication path. Long time working with this radius signals will leads some brain related problems,and heart related problems. Read more:

4. Virtual Private Network (VPN)

   • VPN is a technology that creates an encrypted connection over a less secure network.
   • A virtual private network (VPN) is a network that is constructed using public wires — usually the Internet — to connect to a private network, such as a company's internal network.
   • It secures the private network as these systems use encryption and other security mechanisms to ensure that only authorized users can access the network and that the data cannot be intercepted.