introduction to network
TRANSCRIPT
WHAT IS NETWORK?
Network is the Connectivity between two or more
computer to share the data and Resources such as
Printer and CD-Rom etc.
Advantage of network
Sharing of data, files and folder, Resources, Application,
internet connection, gaming and chatting etc.
Disadvantage of Network
Spreading of virus of network, Less Security. 2
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WHAT IS THE REQUIREMENT OF NETWORK?
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Two type’s requirement
Physical Logical
Minimum two Computers, Lan
Card / NIC card cable
Operating system with NIC Driver
Centralize Devices Hub and Switch Installed Protocols
TYPES OF NETWORK: - LAN – CAN – PAN, MAN, WAN
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LAN Local area Network
A LAN refers to combination of computer Hardware and connects a group of
nodes covering small physical areas.
LAN normally does not exceed tens of kilometers in size.
It is entirely contained within a room or floor or Building
WAN WIDE AREA NETWORK
WAN includes all networks larger than LAN.
Normally, Multiconnection of LAN is called as WAN
A WAN spans a large Physical distance like country
to country.
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COMPUTING MODEL
Computing Models Technologies have been
developed because for the required of following
model.
Centralized Computing
Cms main centre in Andrei > It’s have its sub-
branch in Mumbai are Thane Dadar Borivali etc.
Single Tower is known as Terminal.
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Distribution Computing
As the computer industry matured smaller PC were created that
allowed individual total control over their own computer.
This personal computer structure called Distributed computing.
Instead of centralizing all computers processing into a single mainframe
distribution computing use multiple smaller computer to achieve the
same processing goal.
E.g. Department wise Distribution that means structure.
Server cms head offices in Anderi
Collaborative Computing
A new model called collaborative computing and also called Cooperative
processing is becoming an important trend
Instead of simply communication data between computing collaborative
computing use two or more computer to accomplish the same
processing task.
E.g. Different server is connected or share with each other is called
collaborative computing
Facebook login ID may be Gmail or Yahoo.com so they both have trust
relation with each other to access the FB Account.
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ELEMENT OF NETWORK
Server
Client
Peer
Server are only allowed to provide services
Clients are only allowed to request services from other
Peers may do both con-currently
Peer to Peer Network allow any entity to both request and provide
Server-Client or Server-Centric network
It involve strictly define role
By definition a server centric network place restriction upon which entity may make request of services of them.
Current, most popular personal computer networks are server-centric
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Peer to Peer Network Server-client network
It required client OS It required client and server
OS
Each and every computer has
same right
Server has high right and
decide the permission for
client
No centralized control over
share resource
High security
It work with 10 and 15 user Client and server support
unlimited user
It is known as Workgroup It is known as Domain
NETWORK SERVICES
File Services 🎌
Messaging services 🎌
Print services 🎌
🎌
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