what is the network and its types?

Computer Network Types

by ABHAY MISHRA

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HELLO, FRIENDS TODAY WE DISCUSS A NEW TOPIC COMPUTER NETWORK TYPES

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Computer Network Types

Generally, networks are distinguished based on their geographical span. A network can be as small as distance between your mobile phone and its Bluetooth headphone and as large as the internet itself, covering the whole geographical world,

 Personal Area Network

PAN is used to transmit data and information very shorter distances which
control by a single person within a single building. . PAN has connectivity range up to 10 meters. PAN may include wireless computer keyboard and mouse, Bluetooth enabled headphones, wireless printers, mobile, tablet, IPAD and TV remotes. For example, Internet hotspot which may contain
up to 8 devices connected with a single hotspot.

Advantages

 PANs are efficient, cost-effective and convenient.
 security because it is control by single person

Disadvantages

 Shorter distance up to 10 meter only
 Data rate is low compare to other network
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Local Area Network

A LAN is a small and privately owned network to provide local connectivity within a small region."A region” refers to the same office, the same building, the same company and in the same schools. It provide different services like document management, sharing resources, work group scheduling, e-mail and fax communications services and other
VOIP and unified communication. Some common LAN protocols are Ethernet, Asynchronous Transfer Mode (ATM), Token Ring and Fibre Distributed Data Interface (FDDI).

Characteristics of a LAN:

 Limited geographic operation up to 10 Km
 High speed data transfer rates
 Full time connectivity to local services
 Generally lower in cost than a WAN
 It uses mainly bus, ring and star topology
 LAN support a variety of transmission medium such as Ethernet ,fiber, wireless etc
 Requires little wiring, typically a single cable connecting to each device

Advantages

 Lower in cost
 Sharing of Resources
 High Speed
 Security

Disadvantages
 When number of nodes became increases then performance became decrease.
 Area covered is limited.

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Metropolitan Area Network

A MAN is a network designed to extend over an entire city. The
MAN range of between 10 to 50 miles. This is a network which is
larger than a LAN but smaller than a WAN. A MAN may be single
network [like a cable television network] or may be formed by
connecting a large number of LAN's.


Advantages

 It is wider area than a LAN
 It is a large network contentedness, information can be
disseminated more widely, rapidly and significantly.

Disadvantages

 Data rate is slow compare to LAN
 Cost is higher than LAN, required more devices and cables
to covered large area.
 It is difficult to manage.

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Wide Area Network

A WAN is used to transmit data and information over large
geographical distances which may even span entire countries and
continents. A WAN can contain multiple smaller networks, such as
LAN's or MANs. The Internet is a WAN, and connects computers all
around the world together. Communication between networks is called
inter networking. WAN may use advanced technologies such as
Asynchronous Transfer Mode (ATM), Frame Relay, and Synchronous
Optical Network (SONET). WAN may be managed by multiple
administration.

Advantages

 large geographical area

Disadvantages

 Complicated and complex
 High cost
 Required high performance devices
 low security
 WANs use very expensive network equipment.

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