Basics Of Computer Network

Basics Of Computer Network

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What is Network?
A network is a group of  two or more computer systems, which are linked together. It also consists of a collection of computers, printers, scanner & other devices that are connected together.
Networking has single purpose to share the information as fast as possible.

1. LAN- LAN stands for Local Area Network. It it used to network computers within a limited area like office, school by using the network media.
   
2. CAN- Campus Area Network is an interconnection of Local Area Networks (LANs) within a limited geographical area. Campus network can be additional to the set of wireless connections, connect several buildings to the same network, but it's not the same thing. A CAN is smaller than a Wide Area Network.
   
3. MAN- MAN means Metropolitan Area Network, which is optimized for a larger geographic area than a LAN, ranging from several blocks of bui;dings to entire city.
   
4. WAN- WAN is Wide Area Network that is a network connection of wide area such as the world.
   
5. PAN- PAN is a Personal Area Network that is a network which is referred to the interconnection of information technology devices mostly up to 10 meters. These interconnected devices might include laptop computers, mobole phones, printers or other computer devices. It is also known as a Wireless Personal Area Network (WPAN).
   

Broad Network Categories:
There are two broad network categories,

1. Peer-to-Peer Networks- Peer-to-Peer (P2P) networks involve two more computers pooling individual resources such as disk drives. Each computer acts as both the client & the server. These computers can directly communicate with other computers. On a Peer-to-Peer network, for example, a scanner on one computer can be used by any other computer on the network. P2P networks are cheap to set up. It's connection type can be by using Ethernet cable or a Wi+Fi router.
   
2. Client-Server Networks- This involves multiple client networks which are connected to atleast a central server on a network where, applications are installed. Clients need access to these server resources, they can access them only from the server. Servers often have private user directories for special users (Example, Windows has Work folders for Special users). Client-Server networks tend to have faster access speeds because the large number of clients they are designed to support. The clients are allowed to function as workstations without sharing any resources network. It is easier to upgrade software applications & files because it held on a single Server computer. System-wide services can be provided through the server software. Security is assured in this model of network, as the server controls access & permission to resources.
   

Benfits of Networking

• File sharing: All types of data (Audio, Video, Text & Images) can be easily shared & accessed on network.
• Resource sharing: Resources likes scanners, printers, network data & applications can be accessed by remote connection devices, using network-connected devices. Example, an application can be shared by multiple users.
• Internet Sharing: A single internet connection can be shared with multiple users & devices.
• Increasing storage capacity: Access any media files stored remotely on other computers storage devices (Example NAS-Network Attached Storage).

Name of Student: Harsh Tiwari
Faculty Name: Naresh  Sir
Roll No: JK-ENR-SW-1621
Date: 22-03-2018
Session Name: Basics Of Computer Network

Summary of learning: Learning about Networking Basics.