COMMUNICATION AND NETWORK
NETWORK
1. What is network and
types?
·
Network
is interconnection of nodes (computer)
·
A network consists of two or more computers that are
linked in order to share resources (such as printers and CDs), exchange files,
or allow electronic communications. ...
·
Two very common types of networks include:
Ø Through wire
Ø Wireless (Wi-Fi à Wireless
Fidelity)
2. What is Nodes?
·
A node
refers to a point or joint where a connection takes place.
·
It can be
computer or device that is part of a network
·
Two or
more nodes are needed in order to form a network connection. A computer becomes a
nodes/Workstation as soon as it is attached to a network.
3. What is Server?
·
A
computer that facilitates sharing of data, software and hardware resources on
the network is known as the server.
·
A network
can have more than one server also. Each server has a unique name by which it
is identified by all the nodes on the network.
4.
Interconnection
YE WORD IS LEYE USE KER TY HAI Q KE 2 COMPUCT K BICH MAI MODEM HOTA HAI
5. We share our resources
These resources can be in the form of
hardware and software:-
Ø Hardware
sharing:-
ü User
/ Clint can share devises such as printer, scanner, CD-ROMs, HHD (hard disk
drive), etc.
Ø Software
sharing: -
ü User
can share any types of file, application, Software.
6. Benefit of computer network
·
File
·
Hardware
·
Application
·
User communication (email,fb,whatapp)
· Network gaming
· Network gaming
What
are the 4 types of networks?
A computer network is mainly of four types:
v LAN(Local Area Network)
ü In LAN the devices
are connected over relatively short distance.
ü They are generally
private network
ü It is suitable for
small origination
ü The LAN can share
expensive devises link as laser printer as well as data on LAN.
ü The user can also
communicate to each other.
v PAN(Personal Area
Network)
ü A PAN network is a
computer network an organised around individual person.
ü We can use this
network to transfer file sons, movies, email, and calendar appointment.
ü USE and fire wire
technologies often link together in Private PAN.
ü Range 1 meter (30
feet).
v MAN(Metropolitan
Area Network)
ü MAN covers large
geographical area like as cities, District.
ü It is developed by
interconnecting smaller network within large geographical area.
ü This network which
spans a physical area which range is 5 km-50 km (Distance)
v WAN(Wide Area
Network)
ü WAN span a large
geographical often a country continents uses this network.
ü This is a private
line of the network
ü A WAN combine
multiple line network
ü That are generally
separated
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