Nt1330 Unit 3 Assignment 1 Questions And Answers

HTTP’s development began back in 1989 by a CERN, European Nuclear Research Organization, known as Tim Berners-Lee. Tim and his team had been developing a new markup language known as HTML, another protocol that

A and B are two users who communicate via this channel. A sends 10,000 bytes (10 kB) of data, then B sends 200,000 bytes (200 kB), and finally A answers with 20,000 bytes (20 kB). You will assume that the channel is shared perfectly, in other words, that switching from one direction of transmission to the other after a message is received occurs without any delay. Draw a diagram to help you. How many seconds will this exchange take (to the nearest hundredth of a second)?

(Kennedy, Adrienne) After graduating from college, he worked for Plessy Telecommunications on bar codes. He had a passion for the electrical side of things he did there. (Kennedy, Adrienne) In 1989 Berners-Lee drafted a proposal for a global hypertext project and his bosses at CERN were skeptical. He pressed the issue and eventually won approval to purchase a NeXT computer to start his ideas of the World Wide Web. (Berners-Lee,

While working there, he created the Hyper-Text Transfer Protocol, or “HTTP”, in order to communicate information between researchers more easily. His job at CERN was a lot harder before he invented HTTP. 9 years later, he figured out how to combine HTTP and the Internet to form the World Wide Web; the first website was in turn created by him. At the time, it wasn’t very revolutionary or open to the public, but today the Internet’s impact on society is huge.

Tim Berners-Lee’s biggest accomplishment was creating the web. In 1989 he created the World Wide Web at the European Particle Physics Laboratory. It started as a distributed collaborative hyper-media information system. Tim designed it as a protocol for linking a multiplicity of documents located on computers anywhere within the internet. The protocol he created is known as HTTP(hypertext Transfer Protocol) which is the set

Sir Tim Berners-Lee is an British physicist,who is also known for his invention that changed the history of computers and our life: The World Wide Web. Until 1990, people were using Internet only for e-mail because information on the Internet was spread and there was not a way to access it all.All that changed with the invention of the World Wide Web. The whole idea of World Wide Web was simple thought on Berners Lee’s mind that it would be great idea for researchers to be able find the documents they needed from any computer in the world.In 1980, he made his first attempt to create resource by writing a program called Enquire to organize documents, lists of people, and the projects on his computer.The hypertext program on his computer would

In 1989, Tim Berners-Lee, whose parents had previously worked on the world’s first commercially built computer - Ferranti Mark 1, developed an information management system and successfully implemented communication between an HTTP client and server (McPherson, 2009).. Since then, he has been at the forefront of innovation and has championed the cause of increasing internet accessibility. He graduated first class from Queen’s College, Oxford with a degree in physics. He started his career with CERN (European Organization for Nuclear Research) where he first started developing hypertext projects. Upon gaining success with his hypertext mini projects, he went on to integrate HTTP with the internet and created the world’s first web browser and website at CERN (“Tim Berners- Lee”, n.d.).

Sir Tim Berners-Lee was born June 8th, 1955 in London, England and was one of the four children to Mary Lee Woods and Conway Berners-Lee. Tim Berners-Lee is known and credited as the inventor of the World Wide Web. Both of Tim Berners-Lee’s “parents worked on the first commercially-built computer” the Ferranti Mark I, which helped influence him into studying mathematics and science growing up as a child (Tim Berners-Lee Biography, n.d.). Tim attended Sheen Mount Primary School and then went on to study at Emanuel School in London, England. He then later went on to graduate in 1976 from Queen’s College of the University of Oxford with a first-class degree in physics. Soon after graduation, he received employment at a printing firm “Plessey Telecommunications Ltd., located in Poole, Dorset, England” (Dennis, 2014). He then eventually met his first wife Jane Northcote a fellow programmer who also studied at Oxford University. However, this relationship ended soon after. He then eventually left Plessey Telecommunications Ltd. and went on to work at the European Organization for Nuclear Research, also known as CERN in Switzerland as a consultant software engineer where he built the first prototype of a hypertext program called ‘ENQUIRE’. In July 1990 Tim Berners-Lee married his second wife Nancy Carlson, who was an American computer programmer who he met while working at CERN. Together Berners-Lee and Carlson had two children together. Again, this marriage did not last long and

The communication process consists of idea origination, the message, channel selecting and encoding, transmission, receiving, decoding, and feedback. Most of the communication problems occur during transmission because it is very possible for messages to get lost.

Tim Berners-Lee is a famous computer scientist from England who is famous for being known as the inventor of the Web. During his many presentations, he points out numerous key ideas based on how he developed the web and the main components behind operating the World Wide Web. Berners-Lee begins his presentation by discussing how he began in the world of technology by working as a software engineer working with data systems during this time. He mentions how frustrating and incompatible it was to simply figure out how to build something because of the long process it took to do such a thing instead of just “clicking” something on the web like we know today. He also mentioned how difficult it was to truly explain to someone what the web was.

The speed of how quickly a file could be shared lies within the underlying network which has the ultimate aggregate bandwidth. As links are not usually used to its full capacity due to traffic, file distribution performance is always lessened. A bad connection often means delays and need for retransmission, causing bottlenecks for that file transfer over the specified link. However, two networks could be connected through a single low-bandwidth link to be segmented if the said link is congested. Uplink used to initiates the distribution usually affects the rate of distribution.

One of the earliest inventions of communication was the electric telegraph invented by Samuel Morse. This device used electrical signals to transmit messages. The telegraph played a significant role in transmitting messages over long spaces. Its usage was in Law enforcement, army and newspapers. Even so, anyone could post messages using a telegram via a service. Today, there are roughly three principal methods of measuring the velocity of data contagion. Baud rate (signaling events per minute), BPS (bits per Sec) and CPS (characters per minute). The fact is, today the baud rate has been substituted with a more precise unit of measurement.

After transmission, received file size for each host is 1592736 bytes which is smaller than the original file. It is the result of packet loss. The loss rate is small below 1%.

Control characters are used when sending data to a printer, monitor, modem, or other device. XOFF (usually referenced by CTRL+S) is used by the transmitting side at the end of the data pulsed to say that the transmission batch is complete. XON (usually referenced by CTRL+Q) is used to start the transmission, and is found at the beginning of the data pulse. (ComputerHope, 2004)

c. In case the sender does not receive any acknowledgement from the receiver, it waits for random