... & Standards 2 1a) Dial-Up 2 1b) Cable Modem 3 2) Switching 4 3) Routers 6 4) WAN Standards 7 Data Communications Assessment 2 Wide Area Networks & Standards 1a) Dial-Up A wide area network connects LANs that are typically separated by great distances. The best-known example of a WAN is the Internet itself. A smaller-scale example is a network that connects a company's corporate headquarters ... . Voice calls on telephone networks are the best example. A phone connects to a local telephone-switching centre via twisted-pair cables. If the connection is between two phones in the same area,...

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• Grade Level: High School

... rack holding two horizontal wires with beads strung across them. Several different types of arithmetic operations could be performed when these beads were manipulated. Another early calculator, later called Napier's Bones, made its debut in the early 1600's. This device, invented by Charles Napier, consisted of a series of rods that ... invented a digital apparatus that could not only add, but could also multiply. It was not until 1820 that a mechanical calculator, developed by Charles Xavier Thomas, was introduced that could perform all four basic arithmetic operations. While Thomas wa...

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• Grade Level: High School

... figure out equations, store data, and draw graphics. From there the computer industry exploded. Now computers have changed many aspects of life. Computers have had a major effect upon business. One area deals with the advertising industry. It has completely re-arranged the advertising business. Before computers companies used to advertise only on magazines, billboards, and T.V. The internet has spawned a new world ... great deals of the commercials on T.V. are computer-related. These two combined have made the advertising businesses boom. Not only just on the T.V., but also on the net. A...

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• Grade Level: High School

... pound at the butcher's shop. Regardless of the great cost and effort that went into the making of tables they were inevitably full of errors. The Arithmometer was like a desktop calculator or a cash register and proved to the people there was a need to change the way things were done, an easier way to get the job done, quicker and more efficient ... of inertia and stress distributions. Without the help of these calculations it would not have been possible to build bridges, railroads, steamships or textile mills. The Electronic Numerical Integrator and Calculator (ENIAC) was produced at ...

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• Grade Level: High School

... life easier and almost totally automated. You no longer need to go to a teller in a bank to deposit, withdraw, or even cash a check. You can even program a calculator to solve for the c value in an equation in math class. To even top things off you no longer need to be at home or around a computer to go on ... ) where only a few computers are networked or connected together and have file sharing access or as a world wide factor as the internet or WAN (wide area network). Networking allows multiple use access the same data at the same time. When there is an intranet it is localized to onl...

• Word Count: 1702
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• Grade Level: High School

... life easier and almost totally automated. You no longer need to go to a teller in a bank to deposit, withdraw, or even cash a check. You can even program a calculator to solve for the c value in an equation in math class. To even top things off you no longer need to be at home or around a computer to go on ... ) where only a few computers are networked or connected together and have file sharing access or as a world wide factor as the internet or WAN (wide area network). Networking allows multiple use access the same data at the same time. When there is an intranet it is localized to onl...

• Word Count: 1761
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• Has Bibliography
• Grade Level: High School

... data transmissions. 1.2 Types of broadband There are a number of different types of broadband connection available and the one you have is dependant on the area where you live in and the facilities your home or office has. The main types of broadband are ADSL, Cable, Satellite and WIFI Hotspots. ... the people can choose for themselves whether they want to use this service or not. According to the local government, this should make the area much more attractive for people to live in. The fibre connection is not only used for Internet, but also for other telecommunication devices such as...

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• Grade Level: High School

... the quantity sold is Q1. Because the demand curve reflects the online buyer's willingness to pay, consumer surplus is the area between the demand curve and the price, A+B+C. Similarly, because the supply curve reflects the online seller's costs, producer surplus is the area between the supply curve and the price, D+E+F. In this case, since there is no tax revenue, the total surplus ... of Internet commerce equals the area A+B+C+D+E+F. Figure 2: Taxation causes a deadweight loss Now consider welfare after the tax is enacted on the Internet commerce. The ... the losses to buyers and sell...

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... the Internet. Identifying which category of addiction the Internet falls into is the problem. There are no real answers yet because research in this area is at the beginning stages. While lost in this so called "Cyber Community" for long periods of time, people are neglecting other important ... clinical form.4 Identifying which category of addiction the Internet falls into is another problem. There are no real answers yet because research in this area is at the beginning stages. A few researchers are comparing the Internets effects to marijuana as a psychostimulant. They argue that the ...

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• Grade Level: High School

... or Armani of the job seeker boards. Neighborhood Shopper - these individuals are looking for a job within a certain geographic area. They are not usually looking to relocate out of the immediate area. Their job search is kept local by usually looking at only local companies web sites. Casual Shopper - this individual is ... jobs on the Internet and their results are varied according to industry and individual needs and goals. Actual Results of Internet Recruiting The next major area that has to be discussed is the actual results of Internet recruiting, does it work and in what context sh...

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... the Internet. Identifying which category of addiction the Internet falls into is the problem. There are no real answers yet because research in this area is at the beginning stages. While lost in this so called "Cyber Community" for long periods of time, people are neglecting other important ... form.4 Identifying which category of addiction the Internet fal! ls into is another problem. There are no real answers yet because research in this area is at the beginning stages. A few researchers are comparing the Internets effects to marijuana as a psychostimulant. They argue that the chemic...

• Word Count: 1923
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• Grade Level: High School

... the Internet. Identifying which category of addiction the Internet falls into is the problem. There are no real answers yet because research in this area is at the beginning stages. While lost in this so called "Cyber Community" for long periods of time, people are neglecting other important ... clinical form.4 Identifying which category of addiction the Internet falls into is another problem. There are no real answers yet because research in this area is at the beginning stages. A few researchers are comparing the Internets effects to marijuana as a psychostimulant. They argue that the ...

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... away. Its strength is that it has been there a while and has established itself. Its weakness is that it's a small facility with mostly an outside area to play. The major competitors in the future will be more dog daycares or dog sitters. The strength of my company is that there is not that many ... dog daycares in the Vancouver area. The ones that are around do not offer training and grooming at no additional charge. Puppy Playland is easily accessible and close by a number of ... apartment complexes that take dogs. The weakness of my company is that I've never owned one before and I"...

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... form. (Smith, 1996) Identifying which category of addiction the Internet falls into is another problem. There are no real answers yet because research in this area is at the beginning stages. A few researchers are comparing the Internets effects to marijuana as a psychostimulant. They argue that the chemicals in marijuana activate ... in some way. The main way to determine if an activity is addictive is if it is having a negative impact on some other important area of your life and if you continue to do it anyway. The questions to be answered now are, if there is such a thing as ... th...

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... T1 Subchannels DS-0 T1 1,544 Mbps 1 DS-1 T2 6,312 Mbps 4 DS-2 T3 44,736 Mbps 28 DS-3 T4 274,176 Mbps 168 DS-4 Token Ring Token ring network is a local area network (LAN) in which all computers are connected in a ring or star topology and a binary digit- or token-passing scheme is used in order to prevent the collision of data ... between two computers that want to send messages at the same time. The token ring protocol is the second most widely used protocol on local area networks after Ethernet. The IBM Token Ring protocol led to a standard version, specified as IEEE 802.5. Both protoc...

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... site. Among aspects of workability is user friendliness. Food First Site provides the viewers with a search menu that helps direct you to the intended area of discussion. 'Help' services are provided, this helps users solve their problems moving around the site or retrieving information. Readability on the screen is ... to facilitate the users and is easy to retrieve. A search engine is provided to help save you time and direct you exactly to intended area, this comes under browsability and organization. The numerous nonprofit foundations created by the philanthropist George Soros are lin...

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... " (Reference 3). With satellites we can log on to the Internet and get live local radar to see what kind of weather conditions are in our area. Or you can see what weather systems are approaching the area and with technology meteorologists can see what day the storm will arrive. Without satellites our daily lives would change drastically. We would not know how ... in the news media. When your local news is not on all you have to do is log onto the web to get updates about what is going on I your area. Internet news media has everything that the news media on TV has and more. With Interne...

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... glaciated valley. We had tests each day in class on these to make sure that we knew them well. Another part of our preparation was drawing a sketch map of the area we intended visiting. We drew a sketch map to scale of 1:50,000 and marked in the things we planned visiting e.g. the Lugduff River, Polanass Waterfall and the educational centre ... . We also drew the ribbon lakes and the road we were going to travel. The main purpose of this was to become familiar with the area so as when we got there we would know where we were in relation to the other features. It also helped with our stud...

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... away. Its strength is that it has been there a while and has established itself. Its weakness is that it's a small facility with mostly an outside area to play. The major competitors in the future will be more dog daycares or dog sitters. The strength of my company is that there is not that many ... dog daycares in the Vancouver area. The ones that are around do not offer training and grooming at no additional charge. Puppy Playland is easily accessible and close by a number of ... apartment complexes that take dogs. The weakness of my company is that I've never owned one before and I"...

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... the barrier that exists between French and English-speaking citizens (Selman and Dampier, 54). There have been substantial efforts made by various groups to overcome regionalism in their particular area. Perhaps the most well known is the "Antigonish Movement,"" started in 1928. This movement can be described as the extension work of St. Francis Xavier University in Antigonish, ... , ¶ 2.). The purpose of this institution was to provide distance learning through use of technology and home study. At Athabasca, telecommunications is very important. As technology in this area increased, in...

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... load balancing and what is distributed processing. What is a server farm? A Server farm or cluster is a group of servers, workstations, and storage subsystems that are linked together by a (SAN) storage area network so they act as a single, large computing resource. It's not a new idea it has been done for many years in colleges and scientific research institutions. The idea is only ... use of a geographically separated redundancy. Whereby the server clusters are separated by distance and therefore are backups of each other should some catastrophic event occur more than likely only one ...

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... not yet access the Internet in this fashion. One reason is because they can't. In order for a person to have cable internet, they must also have to be in an area with cable TV. The cable TV provider must also have the ability to provide Internet access as well (www.catv.org). Another reason is the price. Costs can be anywhere ... have to be "computer savvy", so ISP's such as AOL and MSN are popular. One more drawback occurs when multiple users from the same area access the Internet using a cable modem. Because bandwidth is shared within an area, speed can decrease by as much as 75% of t...

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... been lost to online competitors. The Internet reaches far out to markets never before thought possible. This is a global market and careful planning may be the key to success. An area of growing importance in today's highly competitive markets is marketing. The global opportunities offered through the Internet makes marketing strategies more complex and but also very revolutionary. The Internet is ... when sent in with the certification authority and whenever it is sent with messages. Customer Centric Operations - The Way Ahead From the above study it may be concluded that the area to i...

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... company Alcatel with its 120.000 employees in more than 130 countries is a world leader in high-speed access and optical transport market. Furthermore, it is a major player in the area of telecommunications and the internet. With its expertise in communications systems, its line of products and services as well as its strong global presence, the company can fulfil its customers ... convergence and applications that constitute a vital link to e-commerce. It is also the number one supplier in Europe of private automatic branch exchanges (PABX) with a 24% market share. In the area of call ...

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... or most popularly known as LAN is a group of computers and devices that are connected each other and are located in the same area. The typical Lan consists of two or more computers, printers, and a large hard disk drive, that is called server. Mostly every LAN should have a server. It should be used for ... physically as a star. One LAN can be connected to other LANs over any distance via telephone lines and radio waves. A system of LANs connected in this way is called a wide-area network (WAN) ...

• Word Count: 487
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• Grade Level: High School