What is Computer Networking?

When multiple computers are linked together via a computer networking, data and resources can be exchanged between them. Users can converse more readily because to the integration of computers and other gadgets. Narayan communication provides the best computer networking in himachal pradesh.
It is a grouping of two or more computers linked together in a computer network. Cable or wireless media can be used to establish a network connection. Computers and tools in a network are linked together via hardware and software or multiple devices.
Different types of nodes make up a computer network. Nodes in a computer network can include servers, networking devices, personal computers, and other specialized or general-purpose hosts. They are identified by their hostnames and network addresses. We are the biggest dealer of computer networking last 25 years in hp.

Narayan Communication pioneers in providing communication, networking and security solutions in Himachal Pradesh. We acknowledge pace of advancement of technology in telecom, networking and security industries and are committed keeping abreast with changing scenarios, in order to provide our customers with tailor made solutions with the help of latest technologies.

Networking’s Purpose:

It is not necessary for programmer to run on a single machine, as resources and burden are shared.
Multiple machines can share printers, tape drives, and other peripherals, resulting in lower operating costs.
Availability – If a machine fails, another can be used to fill its position.
The capacity to add extra computers or processors as needed
mail and communication (people living apart can work together)
Getting to the Right Information (remote information access, access to the internet, e-mail, video conferencing, and online shopping)
Interactive entertainment (online games, videos, etc.)
Using the Internet for Personal and Professional Development

Narayan full-fill all the these kind of goals. We are the best computer networking dealer in the entire state of hp. In fact, it is the larger networks that are closer to you.

Network Types

Distinction based on the mode of transmission

The term “wired” refers to any physical medium that is comprised of wires. Twisted-pair and fiber optic cables are all possibilities. A wired network services uses wires to connect devices such as laptops and desktop computers to the Internet or another network.
Wireless networks use electromagnetic waves or infrared signals. They are in all wireless devices. Cellphones and other mobile devices, as well as TV and satellite receiver remote controls, are all Wi-Fi enabled. Wireless networks use radio waves instead of wires to carry data and communications.

Broadcast networks: A signal mechanism in which many parties can hear a single sender in broadcast networks. When it comes to “Broadcast Network,” radio stations are a great example of how it works in real life. Here, the radio station is acting as a data/signal sender, with the intention of the data travelling solely in one direction. To be exact, away from the radio transmission tower.

Depending on the type of structure

“Peers” in P2P networks refer to computers with identical capabilities and specifications.
The abbreviation “peer to peer” stands for “peer to peer.” In a P2P network, the “peers” are computers that communicate with one other via the Internet. Files can be shared between computers on the network services without the need for a central server.

A C/S Network (CSN) Every machine or process on the network is either a client or a server in a client-server architecture. The server provides services requested by the client. A server is a high-performance computer or process that manages files, printers, or network traffic (network servers)

Networks that combine elements of both traditional and emerging technologies In the hybrid paradigm, a client-server and peer-to-peer architecture are combined. Torrent is an example.

What is Network?

If a process on one device can communicate with a process in another device, they are in a network. The term “network” refers to a system that allows devices (such as computers) to communicate with one another. Sharing resources such as a printer or file server is possible when a collection of computers and networking devices are linked together. Cable or wireless media can be used to link devices.

Network Types

There are a variety of computer networks available today. The size and purpose of a computer network can be used to identify them.
The number of computers and the area they occupy are two ways to measure the scale of a network. Networks can be as small as a few computers in a single room or as large as millions of computers all across the world.

Depending on their size, the following networks are available:

• PAN stands for “personal area network.”
• LAN (local area network)
• MAN (managed area network)
• WAN refers to a network that covers a large area.

Networks that may be used for everything from transferring files to a printer to accessing the Internet are known as general purpose networks. Some networks, on the other hand, have a very specific purpose.
In terms of their primary function, some of the networks are as follows;
Enterprise private network, often known as EPN, or Storage Area Network (SAN)
Personal Area Network (PAN) or VPN stands for virtual private network.

Personal Area Network

An individual’s personal area network, or PAN, is a computer network that is centered around him or her. This could take place in a home or a tiny office. Computers, phones, peripherals, gaming consoles, and other personal entertainment equipment are all examples of conventional PANs.

A home area network, or HAN, is a term used to describe a network that is shared by several users within a single residence. A modem and a single wired Internet connection are the most common configurations in a home. Using this modem, many devices can be connected both wired and wirelessly. The network can be accessed from any device, even if it is normally maintained by a single computer.

With this network, you have a lot of options. As an illustration, you are able to:

• Sit on the couch with your laptop and send a print job to the printer upstairs.
• Using your cell phone’s camera, take a picture and save it to your desktop PC.
• Stream movies to your television via an internet streaming service.
• If this rings a bell, you may be living with a PAN without even realizing it.

Local Area Network Services

A LAN, or local area network, is a network of computers located in a single location, most often an office building. Sharing resources, such as data storage and printers, is a major benefit of a local area network (LAN). Hardware such as hubs, network adapters, and Ethernet cables can be used to build LANs at a low cost.
It is possible to have two computers on a small network, while larger networks may have hundreds of machines. Wireless connections can also be a part of a LAN, which normally relies on cable connections for speed and security. LANs are known for their speed and cost-effectiveness.

There are LANs for single places where people need to exchange resources but not with the outside world are commonly utilized for LANs. Visualize a large office complex where each employee has the ability to view files on a central server and print documents to one or more shared printers. Everyone in the same office should be able to accomplish these things with ease, but you don’t want someone strolling outside of the office with their cell phone to be able to send a document to the printer! The term “wireless local area network,” or WLAN, is used to describe a LAN that is totally wireless.

Metropolitan Area Network

For example, a city, college campus, or local region may have a computer network called a metropolitan area network (MAN). To put it simply, the scope of the Internet is far greater than that of the local area network (LAN). From a few kilometers to several tens of miles, depending on the arrangement, this type of network can be used. To create a more expansive network, MANs are frequently used to link many local area networks (LANs) together. In the case where this type of network is developed for a college campus, the term campus area network (CAN) is used.

Wide Area Network

An entire country or the entire world can be covered by a wide area network, or WAN. Networks like LANs and MANs can be part of the same WAN. The most well-known public WAN is the Internet.

Private Networks

It is possible to keep a network completely private by restricting some communications only to those within the network, such as PAN and LAN. In other words, they will never be transmitted through the Internet.

Since no data travels outside of the local area network (LAN), an employee can connect to a company database securely and quickly using a LAN. This means that no encryption is required. Even if the employee is on-site, what happens if they need to access the database from a different location? A private network is what you need.

Wireless Local Area Networks – WLANs

Short-distance wireless network communication is provided by WLANs (Wireless Local Area Networks or also referred to as LAWN, for local area wireless network), which use radio or infrared signals rather than traditional network wiring.

When a mobile user wants to connect to a local area network (LAN) wirelessly, they use WLANs (Wireless Local Area Networks).

University of Hawaii professor Norman Abramson invented the world’s first wireless computer networking system.
Wireless local area networks (WLAN) are used to extend wired local area networks (LANs). To create a wireless local area network, an access point (AP) is connected to the wired network’s edge. An Ethernet-like wireless network adapter is used by clients to communicate with the AP.

For WLANs, network security is still a major challenge (Wireless Local Area Networks). In most cases, it’s necessary to prevent unauthorized wireless clients from connecting to the WLAN. Wireless networks now have the same level of security as regular wired networks thanks to technologies like WEP.

Wired LAN equipment was once so expensive that WLAN (Wireless Local Area Networks) hardware was only used as an alternative to it when wiring was impractical or impossible.

Stations in a network are any devices that can communicate across a wireless media. There is a wireless network interface controller installed in each station (WNICs). There are two types of wireless stations: access points and clients. Base stations for a wireless network are provided by access points (APs), which are often routers.

The radio frequencies they send and receive are used to communicate with wirelessly equipped devices. Laptops, personal digital assistants, IP phones and other smartphones are examples of mobile wireless clients, whereas fixed wireless clients include workstations and desktop computers having a wireless network interface.

Types of WLAN (Wireless Local Area Network)

• Small-scale wireless networks for private residences and businesses
• When using a WLAN in your house or office, it is common to use one or two access points to spread the signal out over a distance of 100 to 200 feet. Many retail establishments carry the equipment needed to set up a home Wi-Fi network.

Wi-fi in the enterprise

There are a huge number of access points in an enterprise-class WLAN that broadcast the signal to a big area There are more features in the access points, such as stronger security and authentication, remote management and tools to help integrate with existing networks than there are in residential or small office WLAN equipment. In comparison to typical home or small office routers, these access points have a far wider range of coverage and are designed to work in concert to provide coverage over much greater distances. The 802.11a, b, g, or n standard can be used, as well as security-enhancing standards like 802.1x and WPA2.
Examples:
Wireless Application Protocol (WAP) technology makes it easier to download and display Web content on wireless devices like mobile phones and PDAs that connect to the Internet.

A SAN is a distributed storage network (SAN)

A high-speed, special-purpose local area network, SANs are a subset of LANs. High-end servers, numerous disc arrays, and Fiber Channel interconnection technology are generally used in SANs to store, retrieve, and replicate data on business networks.
Similar to but distinct from network performance -attached storage (NAS) technology, storage area networks (SANs) are becoming increasingly popular. TCP/IP may be easily integrated into household computer networks while SANs often use low-level network protocols for transferring blocks of disc.
System area networks (SANs) are sometimes referred to as a storage area network when the term SAN is used. For distributed processing applications that require fast local network performance, system area networks are clusters of powerful computers. In contrast, storage area networks are designed solely for data storage.
All of these functions are supported by SANs, including data archiving and retrieval as well as data movement from one storage device to another. Network Attached Storage (NAS) systems can be integrated with SANs to form a larger, more flexible network.

It is easier to operate with storage area networks (SANs).

Storage Area Networks have made it feasible to simplify storage administration by eliminating the need to physically relocate cables and storage devices. It’s now a breeze to transfer data from one server to another. Storage Area Networks have made it possible to do this. It’s a lot less work now.

Previously, the storage area networks process might be completed in as little as 30 minutes. But today we have the ability to speed things up.

Storage Area Networks’ boo-table features can also be used to restore data in the event of a disaster, such as a server breakdown or human error. Recovering critical data and backups is made easier with the use of storage area networks (SAS). A secondary storage array keeps the storage area networks from being hampered by their remote location.

For example, disc array controllers, server software, or specialized SAN devices can implement storage replication. The Fiber Channel over IP (FCIP) and iSCSI protocols, which allow SAN extension over IP networks, were created since IP WANs are often the least expensive form of long-distance communication.

Business continuity was not ensured when calamity struck because of the limitations of the previous technology, which was based on physical SCSI.

SAN disc arrays have improved and consolidated functionality like as I/O caching, volume cloning, and snapshotting to provide for BCVs or business continuity (Business Continuance Volumes).

LAN for the campus (CAN)

When several local area networks (LANs) on a university or corporate campus are connected by a campus area network (CAN), we say that the networks are interconnected.
Some of the campus buildings may be connected to the network.
However, a campus network is larger than a local area network but smaller than a metropolitan area network (MAN) or large-area network (LAN) (WAN). CAN can also be used to refer to a company’s intranet.

LAN for your own use (PAN)

• A personal area network (PAN) is a network of computers centred on a single user. It’s not uncommon for personal area networks to have at least one mobile computer, but this isn’t always the case. Typically, personal area networks have a network range of no more than ten feet (about 30 feet).
• First created by M.I.T.’s Media Lab, PAN (Personal Area Network) was backed by IBM’s Almaden research laboratory.
• Since most personal area networks require wireless connectivity, the term Wireless Personal Area Network (WPAN) is personal computers. PAN (personal area network) vs. LAN (local area network): The former tends to be centered around one person, while the latter is a LAN (local area network) that is connected without cables and serves several users.
• Mobile computers, such as laptops and PDAs, are the fastest-growing sector of the computer business (PDAs).
• Due to the lack of a wired connection in automobiles and planes, wireless networks are becoming increasingly vital.
• There are a plethora of uses for wireless networks. The portable office is a good example of this.
• Using a portable electronic device to make phone calls, send and receive email and fax messages, or access data stored on a remote computer is common practice for people who commute by car.
• Trucks, buses, taxis, aero planes, and other vehicles can be equipped with wireless networks. In the event of a disaster, such as a fire, flood, earthquake, or other natural calamity, they are utilized to replace the telephone system.
• Wireless networks are critical to the military’s operations.
• There are some similarities between wireless networks and mobile computing, but they are not the same, as some wireless computers are not portable.
• A portable office and inventory managed by PDAs are examples of fully mobile wireless applications.
• Another type of wireless network is the Wireless LAN. CDPD (Cellular Digital Packet Data) is now offered as a direct digital cellular service:
• Wired and wireless networking can be used in conjunction with each other.

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