Computer Networks

What is Computer Network Definition?: When two or more computers or any devices connected with each other using some medium such as cables for the purpose of exchanging information, data, message and resource sharing is known as computer networks.
What is Computer Networks and History of Networks?
Computer Network

What is Computer networking Definition?: The process of share data and networks resources among the computers in a network is known as networking. Two devices are said to be networked when a tool is in a position to exchange information with another device.

A computer network is a telecommunication network that allows computers to pass data from source to destination and vice versa. These devices or Network of computers connection links. These links established using either cable media such as twisted pair cable, co-axial cable, fiber optics cable or wireless media such as Bluetooth, infrared, satellite, microwave, laser etc.

What is Network Topology and explain it

Example of resource / data sharing: In computer lab there are many computers which are connected together via LAN.

What is Network Definition?: When many computers are connected with each other it known as Network. The Definition of Network.
What is Computer Networks and History of Networks?

Assume that there is only one printer in lab & connected with only one computer. If we want to take a print from any of the computer from that lab we can use the concept of networking & we can take a print from any computer.

Another example is CDROM. In institute not all the CPUs have CDROM due to high cost purpose. If we have 20 computers in one lab then it will cost too high for 20 CDROM. So we can use the concept of Computer networking to minimize the cost. If we want to install particular software in each computer for the student’s lab work, we require a CDROM to put a CD of that software then we can install software from it. But with the help of networking concept we can assemble only one CDROM to only one PC & then using that only one CDROM we can install software to each & every PCs in lab.

Internet is biggest example of networks. Internet = (inter) inter-communication + (net) network. When many computers are connected with each other it known as network, while many networks are connected with each other known as internet. So internet is ‘networks’.
A person who have the strong background in the Data Network of Computer must know that a network consists of a server, computers, routers, hubs, WAN, LAN, fiber optic and Ethernet cables and devices. Both the telecommunication and digital communication persons agree that the cabling is an important a part of any Computer Network.

A Local Area Network (LAN) connects two or more computers, and may be called a network in an office, building or campus. A Wide Area Network (WAN) which connects two or more networks in wide distance may be the city or country.

The network exists in different sizes and shapes, from home networks to WAN networks. Despite the various roles and various sizes of a network you'll have some common similarities altogether the networks like protocols, architecture and topology / design.
What is Computer Networks and History of Networks?

Computer Networking may be a core a part of the entire information technology field because without it computers can never communication with one another locally and remotely. Just image that if a bank or in a corporate office and all the computers in your office are without Networking. How difficult it might be for you and for the opposite employees of your office to communications, shares as word documents, financial reports, client’s feedback, graphical reports and other important work with the other employees.

Top 9 best use of Computer Engineering

History of Network

The field of computer networking and today’s internet introduced early in 1960s, a time at which the telephone network was the world’s main communication Network. The telephone network uses circuit switching to transmit information from a sender for e.g. voice is transmitted at a continuing rate between sender and receiver. The computers were introduced in the early 1960’s, but the question was arising that how computers can connect together so that they could be shared among geographically distributed users.

In 1961, Leonard Kleinrock is the researcher who published first that packet switching is an efficient & robust alternative to circuit switching. Using this theory in 1964, Paul Baran han stated investigating the use of packet switching for secure voice over military networks.

In 1967, Lawrence Roberts went to the computer science program at the Advance Research Project Agency (ARPA) the United States. Then he published an overall plan for the first packet-switched Computer Network and today’s public internet.

The early packet switches were known as interface message processors (IMPs) and the contract to build these switches was given to the BBN installed at University of California, Los Angeles under Leonard Kleinrock’s supervision, with three additional IMPs being installed shortly thereafter at the Stanford Research Institute (SRI), UC Santa Barbaraand therefore the University of Utah. The first interconnected & communicated network was four nodes large at the end of 1969.

By 1972, ARPAnct had developed approximately 15 nodes, and was given its first public demonstration by Robert Kahn at the 1972 International Conference on computer Communications. The first host-to-host protocol between ARPAnet system known as the network-control protocol (NCP).

The first e-mail program was written by Ray Tomlinson at BBN Company in 1972.
By the end of the 1980s the thousands of hosts connected to the public Internet. The 1980s would be a time of unbelievable growth of network. Much of the growth in the early 1980s resulted from several efforts to create The Computer networks linking different universities together.

Above mentioned researchers are not only the founders of the communication Network technology but there many more who have made best efforts to introduce different network technology.


File sharing: Network file sharing between computers gives you more flexibility than using CD drives or Zip drives. Not only are you able to share photos, music files, and documents, you'll also use a home network to save lots of copies of all of your important data on a special computer. Backups are one of the most critical and ignored tasks it home networking.

Sharing Applications: one among the foremost common reasons for Computer Networking in many businesses is in order that several users can work together on one business application. For example, an accounting department may have accounting software which will be used from several computers at an equivalent time. Or a sales-processing department may have an order-entry application that runs on several computers to handle an outsized volume of orders.

Printer/peripheral sharing: Once a home network is in situ , it’s easy to then found out all of the computers to share one printer. No longer will you need to go from one system or another just to print out an email message. Other computer peripherals are often shared similarly like network scanners, Web cams, and CD burners.

Internet connection sharing: Employing a home network, multiple relations can access the web simultaneously without having to pay as ISP for multiple accounts. you'll notice the web connection slows down when several people share it, but broadband Internet can handle the additional load with little trouble. Sharing dial-up Internet connections works, too. Painfully slow sometimes, you'll still appreciate having shared dial-up on those occasions you actually need it.

Multi-player games: Many popular computer games support LAN mode where friends and family can play together, if they need their Computers Networked.

Internet telephone service: So-called voice over IP (Volp) services allow you to make and receive phone calls through your home network across the Internet, saving you money.
Home application  & entertainment” Newer home entertainment products such as digital video recorders (DVR) and video game consoles now support either wired or wireless home networking. Having these products integrate into your network enables online Internet gaming, video sharing and other advanced features. With the assistance of VPN (Virtual Private Network) one can work and access of office data right from home.

Computer mobility: Notebook computers and other portable devices are much affordable than they were a couple of years ago. With a mobile computer e.g. laptop as well wireless internet accessibility e.g. internet dongle you can work or perform any network task such as internet, resource sharing, playing games, watching movie anywhere.

Mobile Users: Billions of mobile users are connected with each other with the help of Network. They can share files, videos, pictures etc and like e-commerce (online buying and paying), M-commerce is using mobile device for paying cash using credit cards, debit cards, net banking and act as an electronic wallet.

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My view about this post (Conclusion)

The network related definitions are well explained in this. People who want to know about computer network will get all the information by reading this post. It also shows how computer networks are used and what their types are. This shows the history of the network. This shows that thee users can read well.


1. What is Computer Network?
2. What is History of Network?
3. How to use of Computer network use?

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