Hang tight while we fetch the video data and transcripts. This only takes a moment.
Connecting to YouTube player…
Fetching transcript data…
We’ll display the transcript, summary, and all view options as soon as everything loads.
Next steps
Loading transcript tools…
Classification of Computer Networks | Neso Academy | YouTubeToText
YouTube Transcript: Classification of Computer Networks
Skip watching entire videos - get the full transcript, search for keywords, and copy with one click.
Share:
Video Transcript
hello everyone welcome back to the
computer networks course today we will
see the classification of computer
networks after completing this session
we will understand what are LAN
man and when and after understanding Lam
van and man
we will also understand what are the
devices that are involved in land man
and man and we will also understand what
are the new trends in computer network
we will see the classification of
computer networks computer networks are
classified into local area network or
simply land metropolitan area network or
simply man wide area network or simply
van we will see local area networks
first as the name implies local means it
is restricted to one limited area that
is a small network is said to be a local
area network a local area network is a
computer network that interconnects
computers within a limited area say a
small network that is there in our
residence or a school lab University
campus or office is said to be a local
area network let's take an example let
there are hundred computers in a network
and this is a school network each of
these computers are connected to each
other with the help of a switch and we
can call this computer network as a
local area network why because all these
computers can communicate with each
other internally we can set a plan in
two ways one is a wired LAN another on a
servile aslam in Wired LAN we have
cables so the example technology for a
wired LAN is Ethernet we have already
seen in the previous lecture that
Ethernet is used to connect two or more
nodes in this case this node is
connected to the switch this computer is
connected to the switch with the help of
an Ethernet cable to be precise this is
an Ethernet straight through cable
because Ethernet straight through cable
connects devices of different kinds
switch and computers are different kinds
of devices so we need to use Ethernet
straight through cable in case if we
want to connect this computer with E
this computer directly then we have to
go for Ethernet crossover cable whatever
it is Ethernet is the well known and the
most popular technology in wired LAN and
the devices that are used in the wired
LAN are hub and switched I will talk
about this happen switch in the
next lecture elaborately now you just
understand hub or switch can be an
intermediary device in a local area
network and that do in a wired local
area network we can also have a local
area network Wireless example Wi-Fi now
we will see metropolitan area network or
simply man a metropolitan area network
is a computer network that interconnects
uses or computers in a geographic region
see there are two branches in a CTE and
these two branches are somehow connected
with each other so this kind of network
is called as a metropolitan area network
in other words there are two local area
networks these two local area networks
are connected to each other in a city
the device is involved in this
metropolitan area network are switches
hubs for establishing a local area
network and to connect to local area
networks we need routers or bridges as I
already mentioned there are minimum two
local area network and these two local
area networks are to be connected with
each other with the help of a router or
a bridge we will see an example now
there are four local area networks
connected to each other let's say this
is a supermarket and this supermarket
has four branches computers in one
supermarket will be in one local area
network similarly other branches also
have separate local area network and
these supermarket branches must somehow
communicate with each other for example
if someone is asking for a product which
is not there in this branch the employ
of this branch wants to search whether
the product is available in other
branches this is possible only if all
local area networks of the supermarket
are connected and this is what exactly a
metropolitan area network please
remember this is restricted to only a
small geographic region like a city
please note in every length there are
some computers and these computers can
communicate with other computers in
other local area network and this is
possible only if these computers are
somehow connected with each other
time to see wild area network that is
the van a voluntary Anette work is a
telecommunications network that extends
over a large geographical area it means
it is a telecommunications network but
it deals with a larger geographical area
first we will see what is a
telecommunications network any
communications at a distance we call it
as a telecommunication network so here
the communication is going to be within
a large geographical area in Man two or
more lands within a city can communicate
with each other in van two or more lands
within a country can communicate with
each other and the devices in van are or
in devices and intermediary devices
because an ending
may want to communicate with an end
device which is in the other part of the
country and some authors will refer this
wide area network to be the Internet we
will see an example now and there are
two local area networks one local area
network is in New Delhi and other local
area network is in Chennai and these two
local area network are in two different
places in the country and they are
separated by a very large geographical
area but still this computer can
communicate with this computer and this
is possible only with the help of a wide
area network wide area network means
communication at a large distance if it
is a man this is possible only within a
city but this is wide area network hence
the communication at the distance is
still possible so far we have seen local
area network metropolitan area network
and wide area network now we will see
the Internet I will say this is a wild
wide area network that is a wide van why
because there are so many local area
networks so many metropolitan area
networks and so many wide area networks
across the world are connected to each
other say for example there is a guy in
India who wants to send some data to a
guy who is in Australia between India
and Australia there are many routers
involved in taking the data from India
to Australia
similarly every country in the world is
somehow connected with other countries
through computer networks we don't know
whether two countries have a friendly
relationship or not but definitely they
will have a computer network
relationship and that's the power of
computer network guys before we conclude
we will see the new trends in computer
networks nowadays many employees are
encouraged by their employers to bring
their own device and
to the office Network and we shall call
such scenario as a bring-your-own-device
scenario it means employees can bring
their own device and connect it to their
office network and still work with
office network coming to the online collaboration
collaboration
once upon a time if a meeting is
scheduled everyone has to assemble in
the meeting spot now the trend has
completely been changed they can
participate from wherever they are and
they can still do online collaboration
with others with the help of computer network
network
say for example a meeting involves
participants in New Delhi Chennai
America Australia but still no one to be
there in a particular or a specific
location they can be wherever they are
but still they can do online
collaboration and cloud computing is the
new trend that we would like to address
cloud computing means it is the
on-demand availability of computer
resources first let's take an example
let's take Google Drive one can store
all files and folders in Google Drive
that gives a lot of flexibility if one
wants to accesses files from any part of
the world he can access by just giving a
request to Google Drive and download the
data what if he had stored the data in
his personal computer he needs to carry
the computer wherever he goes if he
wants the data with him but cloud
computing say this Google Drive offers
this on-demand availability cloud
computing is the on-demand availability
of computer resources especially data
storage and this computing we need not
directly involve in the management we
can just store the data somewhere in a
secure manner and get the data whenever
we wanted that's the power of cloud
computing that's it guys in the initial
part of the session we have listed that
we are going to learn certain things now
we will ensure whether we have learnt
all these things I hope now you have
learned what is local area network
metropolitan area network and wide area
network and we have also seen what are
the various devices involved in LAN
man and van and there are some new
trends that are there in the computer
networking field and we have also seen
those trends thank you for watching [Applause]
[Applause] [Music]
you [Music]
Click on any text or timestamp to jump to that moment in the video
Share:
Most transcripts ready in under 5 seconds
One-Click Copy125+ LanguagesSearch ContentJump to Timestamps
Paste YouTube URL
Enter any YouTube video link to get the full transcript
Transcript Extraction Form
Most transcripts ready in under 5 seconds
Get Our Chrome Extension
Get transcripts instantly without leaving YouTube. Install our Chrome extension for one-click access to any video's transcript directly on the watch page.
Chrome Extension