Computers and Computer Networks Essay Example | Topics and Well Written Essays - 2000 words

Computers and Computer Networks - Essay Example Parameters for this layer are the destination addresses. The Network Layer is associated with routing and directing data to different networks. Likewise, Local area networks, Wide area networks and Metropolitan Area Networks. The Transport layer is associated with check and balance of data packets. It ensures complete delivery of data in terms of files or messages. The Session Layer is associated with maintaining data sessions between different nodes on the network. It also analyzes and prevents collisions between data channels by prioritizing them. The Presentation Layer is associated with presenting the data by converting protocols from data conversion techniques, encryption techniques, binary conversion techniques etc. The Application layer is associated with software including email software, client / server software, FTP software, and much more. Network Components Functionality A simple definition of regenerative repeater is available in network dictionary which states it as â⠂¬Å"a device which regenerates incoming digital signals and then retransmit these signals on an outgoing circuit† The regenerative repeaters are the network devices, installed within the network to regenerate signals that may become weak or unreachable to the destination, due to long distance. These devices are implemented in long distance wired networks for transferring data geographically from one network to the other. As signals, are evolved via network cables, they become weak and attenuated over a certain distance within the same network, resulting in unreachable signals to the destination. This is where regenerative repeaters are useful as they regenerate signals received on their ports and sends the regenerated signals to all the other ports connected on the other end. Moreover, regenerative repeaters do not maintain a database as compare to Ethernet switches and operates on Physical Layer of the OSI model. Furthermore, regenerative repeaters are not compatible for rege nerating signals via two different networks. For instance, the regeneration of signals between a token ring network and Ethernet network is not supported. For example, there are two network locations, where the distance between the two is above 100 meters, repeaters are required to synchronize uninterruptible transmission of data from one network to the other. Otherwise, the attenuation may disturb the digital signals and may not reach the distance, which is above 100 meters. A simplest of definition for a network device known as bridge is as follows â€Å"Local Bridge is a bridge that directly interconnects networks in the same geographical area† (Local Bridge. 2007). Bridge has capabilities to develop network segments. The segments are developed to eliminate unnecessary broadcasting from some workstations or a department on the network. Consequently, the performance of the network will be efficient as bridges can segregate workstation from the network. As these devices oper ate on data link layer of the OSI model, it is implemented to amplify distance between network segments, allowing room for more workstations, to be attached within the same network. Moreover, the segregation of affected workstations from the network, eliminates network congestions and traffic choking. Bridges do not deal with the information available in the higher levels of the

The hunger game (movie) Essay Example | Topics and Well Written Essays - 1000 words

The hunger game (movie) - Essay Example Here are some of the vivid concepts integrated into the movie film. The first includes social acceptance of engaging youth and minors into actual life battles that at some point may also cause their lives. However, this portrayal is not limited to what is happening in the imaginary society of Panem. In the actual world, life’s battle may not be a form of entertainment, but it is a reality for some people, most particularly to the victims and culprits of some relevant crimes. Consider for instance the contemporary war against child prostitution or human trafficking across the world. This is a reality that is placing the future of some minors in jeopardy. It may even distort their normal view of life in a not so distant future. This point may show that the actual child prostitution may not physically kill minors or children at certain level, but the actual idea involved in it is that it includes killing some important aspects in their individual lives. Trading children for sex i s simply considered illegal in contemporary time because of the associated international law that would stand against it to cut its detrimental perpetuation. The unethical implications associated with it is therefore remarkable because of the moral standard set by the government to be integrated in the actual law for ensuring the safety and protection of minors or children. However, despite this government control to protect the welfare of the child as citizen, the ongoing crimes associated with sexual exploitation including minors as primary subjects persist, and even the relevant number of incidence is moving to an upward spiral. Latest statistics reveals more minors are currently involved in sex trade and pornographic activities based on increase hotline calls of victims (National Human Trafficking Resource Center 5). The existence of media and internet increases or motivates the speed of online pornography involving minors. Thus, the televised fight-to-the-death featured in â₠¬Å"The Hunger Games† for instance is a relevant depiction of the actual struggles of some minors particularly those who might have active involvement in online pornography or other related illegal activities. Just as the subjects of televised fight-to-the-death in Panem may have lost their freedom to take hold of preserving their lives, these minors involved in some online or media-related crimes are actually experiencing the same level of struggle to fight for their right to live with a high quality of life founded by safety and protection against exploitations as promised by the government for its people, including the young citizens. Here is another point. The movie may also showcase a hidden message concerning the level of vulnerability of the adult population to provide weak direction for the welfare of the young people while exposing them to the peril of violence that we normally found reported with utmost controversy on the media. Like the nation of Panem that vividly s ees the actual violence through a televised-fight-to-the-death Hunger Games, the world today has never been so blind seeing and hearing the actual crimes committed by minors and young people alike through controversial news coverage in the media. Just let us take for instance the latest case we heard from the media concerning minors molesting another minor (The New York Times). The media informed us of the actual violen