Network communications Assignment Example | Topics and Well Written Essays - 500 words

Network communications - Assignment Example it is networks, which connect computers located mostly in one building, WANs – are networks, which are farther than LANs, however, they connect computers in low distance through the telephone or radio channel, CANs – are networks, which located strictly on the one peculiar location, like the campus of university and so on and the last one is MANs – are the largest networks, which connect considerable quantity of computers, which located in the city. Such networks are very big and have many servers, routers, which allow their functioning (â€Å"What is,† 2013). There are measures of the networks efficiency and one of them is bandwidth. Considering the networks, bandwidth is generally data transfer rate, i.e. amount of some data that can be transferred from one location to another in some specified period of time, however mostly this period is set to one second. Bandwidth is expressed in bps i.e. bits per second. Many modern networks can allow millions of bits per second, and they express it with the Mbps(â€Å"What is,† 2011). Early computers had not access to the network without the special device, it is called NIC. This device allows computers to join the network through some of the channels like wire or radio. Modern computers have preinstalled Computer network interface cards, which are abbreviated to the NIC. Some of the NICs have both wire and radio channels to connect other computers. They belong to the PCI devices(â€Å"What is,† 2011). There are three wired and wireless media for the network transmission and wired ones are: twisted pair, coaxial cable, optical fiber and to wireless media belong: Radio waves, microwaves, infrared. All these media enable networks’ existence (What is, 2014). There is one situation where there was very hard to enable computers to communicate, I had usual local network connection with one computer and wanted to share my internet connection with it, however, I had PPoE connection and this kind of connection needs

Obesity Term Paper Example | Topics and Well Written Essays - 250 words

Obesity - Term Paper Example However, health issues are not the only problems associated with obesity there are also certain economic side effects of it (Sandman, 2007). Different nutritionists and dieticians suggest a number of solutions and cures for this disease. However, there are a few major categories where the first one is in the form of dieting in which the aim is to cut down on consumption of fattening food. Another popular technique is working out, which includes aerobics, yoga, gym, wait training and many others (Wright, 2004). Some people use the combination of these both with a proper weight loss plan, which is another technique. Also taking prescribed medication is essential to control obesity as medicines control appetite (Caprio, 2006). Also the surgical options have started to work more and more with the passage of time. Obesity is a disease that has no boundaries and is common amongst all age groups, gender and ethnic backgrounds. It is an epidemic that has spread all around the globe. Statisti cs show that 31% of Americans are considered obese with a BMI crossing 30 (Grossman, 2004). Works Cited Butcher, Kristin F. Childhood Obesity: Trends and Potential Causes. The Future of Children, 16, 2006 Caprio, Sonia. Treating Child Obesity and Associated Medical Conditions. The Future of Children, 16, 2006 Grossman, Michael. The Economics of Obesity. Public Interest, 2004 Sandman, Nirit.