Advantage & Disadvantage
Of Computer Network
Advantages of Network: These are main advantages
of Computer Networks:
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Central Storage of Data – Files can be stored on a central node (the file server) that
can be shared and made available to each and every user.
Anyone can connect to a computer network – There is a negligible range of abilities
required to connect to a modern computer network.
Faster Problem solving – Since an extensive procedure is disintegrated into a few
littler procedures and each is taken care of by all the associated gadgets, an explicit
issue can ...
Reliability – Reliability implies backing up of information. Due to some reason
equipment crash, and so on, the information gets undermined or inaccessible on one
PC.
It is highly flexible – This innovation is known to be truly adaptable, as it offers clients
the chance to investigate everything about fundamental things.
Disadvantages of Network: These are main disadvantages of Computer
Networks:
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It lacks robustness – If a PC system’s principle server separates, the whole
framework would end up futile. ...
It lacks independence – PC organizing includes a procedure that is worked utilizing
PCs, so individuals will depend a greater amount of PC work, rather than applying an
exertion for ...
Virus and Malware – On the off chance that even one PC on a system gets
contaminated with an infection, there is a possibility for alternate frameworks to get
tainted ...
Cost of network – The expense of executing the system including cabling and
equipment can be expensive.
Advantages & Disadvantages of LAN
Advantages
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Simple and relatively inexpensive: The primary benefit of a local area network is
that this is quick and easy to set up and reasonably priced when contrasted to
other alternatives; consequently, if an organization intends to build a network at
a minimal price and with flexibility, a local area network is the ultimate answer.
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Collaboration of Resources:Expensive components such as printers and scanners
cannot be linked to every desktop since it will indeed be very burdensome for the
company, but thanks to local area networks, a corporation only clearly need one
printer and scanner, and everybody can link to that printer and scanner and
sends instruction from their machines, leading in meaningful cost savings for the
corporation.
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The association involving client and server: All information from connected PCs
may be maintained on a single server. If a machine (Client) demands information,
the client may effortlessly log in and retrieve the information from the system.
Films and albums, for instance, can be maintained on the server and retrieved by
any approved user (Client computer).
Accessing of software programs: On the LAN, software programs may also be
shared. You can incorporate a single licensed program that can be used by any
device on a network. It is pricey to buy a license for each device on a network,
consequently sharing software is simple and straightforward, and cost-effective.
Data protection: It is more safe and secure to keep information on the server.
And if you wish to update or eliminate any data, you may do so rapidly on a
single server computer, and other devices will be able to obtain the new
information. You may very well grant or deny access to particular users,
guaranteeing that only approved users have accessibility to the network’s data.
Fast communication: LAN-connected systems or devices communicate directly at
very high rates of speed, based on the LAN model and ethernet cabling installed.
The most prevalent enabled speeds are 10 Mbps, 100 Mbps, and 1000 Mbps.
Technologies of gigabit ethernet are quickly developing. Once the technology
becomes more sophisticated and large-scale production has commenced, lowercost variants will be accessible to the public.
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Disadvantage
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The information security issue that arises: Unapproved users can retrieve data if
the server equipment is not programmed correctly and there is a technical glitch.
As a consequence, the server’s privacy policy and procedures must be effectively
managed.
Long-distance major limitation: Local area networks are often devised within a
building or apartment complex and cannot be stretched to a bigger area.
All devices may be disproportionately affected if the server fails: If a file on the
server gets heavily damaged or a hard disc crashes, all of the linked PCs will have
extreme difficulty operating correctly.
Installing a LAN is difficult and expensive: It is expensive to establish a LAN since
specialized software is essential to install a server. Additionally, communication
hardware such as hubs, switches, routers, and cables are expensive to buy. A large
office’s LAN must be administered and troubleshot by a professional operator.
Data Sharing via Outside Sources: Another drawback of LAN is that it is difficult
and time-consuming to send files from outside the network since transportable
media such as pen drives and CDs cannot be conveniently performed on all
devices on the network.
Advantages of WAN in Computer Network
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The WAN is used to connect computer in a huge geographical area 1000km
approx. The company business can be operated around the globe thanks to WAN
networks.
Internet Service Provider (ISP) uplinks which can help you to connect other
branches of your offices.
The wan are used in online tickets booking, railway reservations, and airlines
ticket booking.
The company’s important and sensitive data and information are stored in the
centralized system which can be accessed around the globe.
The Software developer can work online on a live web project where certain data
and information is needed from other resources present in other countries .In this
type of situation WAN network plays important role.
The internet can also provide business opportunity like e-commerce websites,
blogging, video blogging, trading, etc.
The online education is the primary and best advantages of WAN.
The WAN network provides incredible speed as there bandwidth is high.
The updates, upgrades of software and applications are very easy and efficient.
The data and information are stored in a centralized network.
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Due to WAN world had become a global village.
The Worldwide connectivity had played an important role in advancement and
enhancement of local as well as international business.
The people around the globe are interconnected with each other thanks to the
social networking websites like whatsapp, Facebook, instagram, etc.
The files and folder can be easily shared through WAN network from one part of
the world to other.
This type of network saves money as well as our precious time as they can handle
important task and job with incredible speed and security.
Wide Area network has helped many starts up to grow their business globally
and also increased their work efficiency.
The wide area network has also helped business in transportation, computer
networking , software industry, hardware industry, etc.
Their ownership can be public or private.
Disadvantages of WAN in Computer Network
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The WAN network is a huge network therefore to maintain this kind of network is
a herculean task.
The primary disadvantage of WAN is they are expensive compared to other
networks.
The peripherals and devices require for initial installation of WAN setup is too
expensive.
The WAN is a combination of various other technologies therefore has many
security issues compared to MAN and LAN
The WAN networks are incredibly huge therefore their maintenance and initial
setup Is very complex.
The WAN networks need software as well as hardware firewall and legal antivirus
software for data security against hackers and crackers. As these networks are
prone to get hacked.
As WAN covers many areas, fixing the problem in it isn’t easy. Most of the WAN
wires go into the sea, and wires get broken sometimes, so it requires lots of
money to fix lines under the sea.
To fix or resolve network issue we need professional help which sometime can be
really expensive.
In some areas, internet standard protocol faces problems due to electric supply
or bad lines structures from this customer often faces connectivity issues or slow
internet speed issues.
The connectivity issues can occur. The WAN networks are very difficult in
addressing the issue.
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If the network goes down the complete setup crashes which can be frustrating
sometimes.
The Speed of WAN is slower than LAN.
The propagation delay time in WAN is longer.
The design of WAN Network is more complex compared to their counterparts.
WAN networks has lower data transfer rate.
Advantages of a metropolitan area network (MAN)
Below are some of the benefits of MAN:Less expensive:
It is less expensive to attach MAN with WAN. MAN gives the good efficiency of data. In
MAN data is easily managed in a centralized way.
Sending local emails:
On MAN you can send local emails fast and free.
High speed than WAN:
MAN uses fiber optics so the speed of data can easily reach upon 1000 Mbps. Files and
databases can be transferred fast.
Sharing of the internet:
In some installation of MANs, users can share their internet connection. So multiple
users can get the same high-speed internet.
Conversion from LAN to MAN is easy:
MAN is a faster way to connect two fast LANs together. This is due to the fast
configuration of links.
High Security:
MAN has a high-security level than WAN.
Disadvantages of metropolitan area network (MAN)
Difficult to manage:
If MAN becomes bigger then it becomes difficult to manage it. This is due to a security
problem and other extra configuration.
Internet speed difference:
MAN cannot work on traditional phone copper wires. If MAN is installed on copper
wires then there will be very low speed. So it required the high cost to set up fiber optics
for the first time.
Hackers attack:
In MAN there are high chances of attacking hackers on the network compared to LAN.
So data may be leaked. Data can be secured but it needs high trained staff and security
tools.
Technical people required to set up:
To setup MAN it requires technical people that can correctly setup MAN. The technical
people are network administrators and troubleshooters.
More wires required:
In MAN additional cables are required to connect two LAN which is another problem.
Advantages of personal area network (PAN)
No extra space requires:
Personal area network does not require extra wire or space. For connecting two devices
you only need to enable Bluetooth in both devices to start sharing data among them.
For example, connecting wireless keyboard and mouse with the tablet through
Bluetooth.
Connect to many devices at a time:
Many devices can be connected to one device at the same time in a personal area
network. You can connect one mobile to many other mobiles or tablets to share files.
Cost effective:
No extra wires are needed in this type of network. Also, no extra data charges are
involved so PAN is an inexpensive way of communication.
Easy to use:
It is easy to use. No advanced setup is required.
Reliable:
If you use this type of data connection within 10 meters then your network is stable and
reliable.
Secure:
This network is secured because all the devices are authorized before data sharing. Third
party injection and data hacking are not possible in PAN.
Used in office, conference, and meetings:
Infrared is the technology used in TV remotes, AC remotes, and other devices.
Bluetooth, infrared and other types of PAN is used to interconnect digital devices in
offices, meetings, and conferences.
Synchronize data between different devices:
One person can synchronize several devices i.e. download, upload and exchanging data
among devices.
Portable:
A person can move devices as it is a wireless network and data exchange is not affected.
That mean PAN is portable as well.
Disadvantages of personal area network (PAN)
Less distance range:
Signal range is maximum 10 meters which makes limitation for long distance sharing.
Interfere with radio signals:
As personal area network also use infrared so it can interfere with radio signals and data
can be dropped.
Slow data transfer:
Bluetooth and infrared have a slow data transfer rate as compared to another type of
networks like LAN (local area network).
Health problem:
In some cases, PAN uses microwave signals in some digital devices which have a bad
effect on the human body like brain and heart problems may occur.
Costly in terms of communication devices:
Personal area network is used in digital devices which are costly so it is another
disadvantage of PAN. Examples are smartphones, PDA, laptops, and digital cameras.
Infrared signals travel in a straight line:
TV remote use infrared signals which have a problem that they travel in straight line. So
this counts another disadvantage of PAN.