Nowadays almost every computer we encounter is part of a complex network of computers. Suppose
that when a laptop or computer that used to stand on its own (stand
alone) then we add an USB Modem that is connected to the internet, then
our computer has been connected and are part of a vast network of WAN
(Wide Area Network).
In
the following article we will try to get to know the understanding of
computer networks, the benefits and the risks of computer networks and
computer networks Division based on broad areas namely PENAN, LAN, MAN
and WAN.
What is a Computer Network?
In
a simple sense of computer networks is the relationship between two or
more computer systems through communication media to perform data
communication with each other.
The Benefits Of Computer Networks:
The
main benefit we can feel from the formation of computer networks is the
ability to share resources (resource sharing) at our disposal such as
the wearing of a printer, hard disk, CD ROM and other peripherial
together, Exchange data (file sharing) and communicate with one another
(emails, chat up video conference).
Disadvantages Of Computer Networks:
In
fact the term may not be exact but a consequence of the loss of
connection between our computer systems to the network this computer
such as security issues (security) at both the resource usage of the
various interested parties not authorized or security issues (virus
threats) on the data that is exchanged.
Regardless
of the various risks that we have to face, it's currently connected to
the computer or is part of a network computer is a thing that could not
be avoided.
Types Of Computer Networks
Types of computer networks based on the coverage area can be differentiated into several types, namely PENAN, LAN, MAN and WAN.
Indonesian languange:
1. PAN (Personal Area Network)
At
the moment we are connecting the computer or other device such as
mobile phone, PDA, keyboard, mouse, headset, wireless, camera and other
equipment which are close enough (4-6 meters) then we have established a
Personal Area Network. The most important thing is that in this our own PAN control (authoritas) on all the equipment. In
addition to the dihubungkn directly to the computer via the USB port or
FireWire, PAN also frequently formed with the wireless technology like
bluetooth, Infrared or WIFI.
Indonesian languange:
2. LAN (Local Area Network)
This is a very popular computer network. LAN (Local Area Network) is a computer network that covers a small area; as the campus computer network, building, Office, in the home and at school.
Indonesian languange:
3. MAN (Metropolitan Area Network)
Metropolitan
Area Network (MAN) is a network in a city with high-speed data transfer
between different locations such as offices, campuses, Government, and
so on. MAN is a composite network of some LAN. The reach of this MAN ranged from 10 to 50 km
Indonesia languange:
4. WAN (Wide Area Network)
WAN
(Wide Area Network) is a computer network that covers a large area, for
example, that computer networks between regions, cities or even
countries, or can be defined also as computer networks require routers
and public communications channels. The Internet is an example of a WAN network.
Indonesian languange:
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