A computer network or data network is a telecommunications network which allows computers to exchange data. In computer networks, networked computing devices exchange data with each other along network links . The connections between nodes are established using either cable media or wireless media. The best-known computer network is the Internet.
Network computer devices that originate, route and terminate the data are called network nodes. Nodes can include hosts such as personal computers, phones, servers as well as networking hardware. Two such devices can be said to be networked together when one device is able to exchange information with the other device, whether or not they have a direct connection to each other.
Computer networks
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In 1959 Anatolii Ivanovich Kitov proposed to the Central Committee of the Communist Party of the Soviet Union a detailed plan for the re-organisation of the control of the Soviet armed forces and of the Soviet economy on the basis of a network of computing centres.
In 1960 the commercial airline reservation system semi-automatic business research environment went online with two connected mainframes.
In 1962 J.C.R. Licklider developed a working group he called the "Intergalactic Computer Network", a precursor to the ARPANET, at the Advanced Research Projects Agency .
In 1964 researchers at Dartmouth College developed the Dartmouth Time Sharing System for distributed users of large computer systems. The same year, at Massachusetts Institute of Technology, a research group supported by General Electric and Bell Labs used a computer to route and manage telephone connections.
Throughout the 1960s, Leonard Kleinrock, Paul Baran, and Donald Davies independently developed network systems that used packets to transfer information between computers over a network.
In 1965, Thomas Marill and Lawrence G. Roberts created the first wide area network . This was an immediate precursor to the ARPANET, of which Roberts became program manager.
Also in 1965, Western Electric introduced the first widely used telephone switch that implemented true computer control.
In 1969 the University of California at Los Angeles, the Stanford Research Institute, the University of
1)A network is when two or more computers are connected together and are able to share data and communication.
The beginning of the Internet is well known. It was a United States Defense research program named ARPANET. The internal structure of ARPA that reared the network development during its first years is not as well known. Inventing the Internet explains how the little agency was created in 1958 to respond to the Soviets' successful launch of the world's first artificial satellite. ARPA did not own a laboratory.
The first Internet introduced to the world is the Arpanet. Arpanet also known as The Advanced Research Projects Agency Network was a early packet switching network and the first network to use the protocol suite TCP/IP. Both technologies became the foundation of the Internet. The Arpanet inventors were Lick Licklider and Lawrence Roberts but they can't take all the credit because they worked for the Arpanet was originally created by the IPTO and went through censorship by DARPA. DARPA was planned by Lick Licklider and Lawrence Roberts. The Arpanet used the geographic location to send files and other thing to other locations. This was used by scientists and government officials. “The Arpanet was also considered as the first prototype of the Internet. On a cold war kind of day in 1969 work began on ARPAnet, the grandfather to the Internet. Designed as a computer version of the nuclear bomb shelter,
This created physical connection between PC’s and the network line. Connected data’s are transporting data’s through the network. Cable is a medium through which information usually moves to one network to another network.
Third, there is a set of software that allows the computer to send data across this network. There are a lot
The 1940’s was the beginning of an era of computers ruling us. It all started with Konrad Zuse a German engineer creates and finishes the computer called Z3 built in 1941 it was built using 2,300 relays, and used a floating point binary arithmetic, and had a 22 bit word length. Although the original was destroyed in a bombing run in Berlin in late 1943. He supervised a reconstruction of his invention in the 60's which is on display at the Deutsches Museum in Munich. In February of 1946 the ENIAC was released and the public was able to view it, built by John Mauchly and J. Presper Eckert they improved it by 1,000 times since the first computers were released. Started in 1943 it took 3 years to complete and it used a plugboard and switch program, and the speed was about 5,000 operations per second. It took up 1,000 square feet, or the size of a small house! In 1944 the Harvard Mark-1 was completed. Thought by the Harvard professor Howard Aiken, and built by IBM, the dimensions of this beast was room sized, relay-based calculator. Also it had a
Although the idea of the computer had developed, the first digital computer, the Colossus, was used in World War II in England to crack into Hitler’s codes to break an electronic code to discover the German’s war plans in 1944. This would eventually evolve into technology that would become the Personal Computers (PC) and begin the age of the Computer and online connection (The Colossus Gallery).
Overall, the book tells us about the people involved the making of the Internet. Through the efforts of these geniuses, we see that the work on the "Arpanet" and Internet, as in the rest of the field of computing, was a team effort, with contributions from many individuals and organizations. And, as stated earlier, this effort also had much government support. Thus, many people and institutions were responsible in the making of this incredible instrument of computer technology.
A router is a network device that routes packets to networks other than its own. Routers are almost like a bridge between networks. Most home use routers to connect their local network (their LAN) to the Internet (which is a wide-area network) with all-in-one devices with routers, modems and wireless access points built in.
Once the Allies triumphantly claimed victory 1945, advancements in computers dwindled. It was only in 1958, thirteen years later, that the computing
network (ARPANET) meant to promote the sharing of super-computers amongst researchers in the United States.” (Kristula, pg 68). Through the next couple years there were talks of about how this network could come into the cooperate world. In 1969 researchers at four US campuses created the first hosts of the ARPANET. They connected the Stanford Research Institute, UCLA, UC Santa Barbara, and the University of Utah. The ARPANET was a success from the very beginning. Although originally designed to allow scientists to share data and access remote computers, email quickly became the most popular application. The ARPANET became a high-speed digital post office as people use it to collaborate on research projects and discuss topics of various interests. In 1971 the ARPANET grows to 23 hosts connecting universities and government research centers around the country. In 1972, the Inter-Networking Working Group becomes
Before I dive into the significant developments within my life I feel it is important to look back at the broader scope of the history of telecommunications and technology to see some of the earlier examples of
Perhaps one of the greatest inventions of out time is the Internet. Without a doubt, the net has had a profound effect on almost every aspect of our lives. The formation of the Internet has changed the way we do business, communicate, entertain, retrieve information, and even educate ourselves. Nevertheless, the Internet might have never materialized if it had not been for some innovated thinkers from the Advanced Research Project Agency, who created "ARPANET." In collaboration with several educational and research institutions, the agency created the packet-switching technologies that form the basis of the Internet today.
They also began keeping their own databases, which companies did not like. The answer was to create a computer network. A computer network is a group of computers connected together enabling users to share resources and communicate with each other. Resources can be hardware, software, or data.
A computer network is a network that consist of two or more computers that are able to share information between them or their users. There are a large variety of different networks and the advantages or disadvantages are strongly related to the type of network we choose.