This website uses cookies to ensure you have the best experience. Learn more

Network And Communication Essay

3657 words - 15 pages

Network and communication
Network: A computer network is a collection of computers and hardware components interconnected by communication channels that allow sharing of resources and information

Types of Network:
Local Area Network(LAN)
Metropolitan Area Network(MAN)
Wide Area Network(WAN)

LAN: When computers located within a small geographical area such as office or a University Campus are connected together we call it a Local Area Network.

MAN: The geographical range of MAN is bigger than LAN. It covers a small city.

WAN: Wide area network span broad geographical distances, ranging from several miles to across entire continents. WAN may consist of a combination of switched ...view middle of the document...

2. A computer network can provide a powerful communication medium among employees.
3. Many companies are doing business electronically with other companies, especially suppliers and customers.
4. Doing business with consumers over the Internet.

Home Applications
Some of the popular uses of the Internet for home users are as follows:
1. Access to remote information
2. Person-to-person communication
3. Interactive entertainment
4. Electronic Commerce
Mobile users

People on the road and sea may use their portable electronic equipment to send and receive telephone calls, faxes, electronic mail, surf the web, access remote files, and log on to the remote machines.

Social issues
A popular feature of many networks is newsgroups or bulletin boards whereby people can exchange messages with like-minded individuals.

Network Topology
Network Topology refers to the physical data path that traffic takes across the network. Three basic types of topologies are bus, star and ring.

Bus Topology
In a bus topology
Each node is connected to a common cable called a bus.
Each node has a unique address.
All nodes will receive a message, but only the addressed node is to respond.
• If one node is down, the network is still available.
• Fewer wires or lines are needed.
• Difficult to administer/troubleshoot.
• Limited cable length and number of stations.
• If there is a problem with the cable, the entire network goes down.
• Performance degrades as additional computers are added or on heavy traffic.

Fig: Bus topology

Star Topology
In a star topology a central host computer connected to a number of small computers or terminals. This topology is useful for applications where some processing must be centralized and some can be preformed locally.
• Good performance
• Easy to set up and to expand.
• Any non-centralized failure will have very little effect on the network

If the central host computer is down, the network will come to standstill.

Ring Topology
In a ring topology all computers are connected by a closed loop in a manner that passes data in one direction from one computer to another.
• Data is quickly transferred.
• The transmission of data is relatively simple as packets travel in one direction only.
• Adding additional nodes has very little impact on bandwidth
The main disadvantage of a ring is larger communication delays if the number of nodes increases.

Model of Connectivity for networks
Reference model: A reference model is a generic framework for thinking about a problem.
Protocol: A protocol is a statement that explains how a specific task will be performed.
Open system Interconnect (OSI) Model: OSI model is an international reference model developed by the International...

Other Papers Like Network and Communication

Literature Essay

1314 words - 6 pages communication purposes. All messages travel through a ring in the same direction (either "clockwise" or "counterclockwise"). A failure in any cable or device breaks the loop and can take down the entire network. To implement a ring network, one typically uses FDDI, SONET, or Token Ring technology. Ring topologies are found in some office buildings or school campuses. See the illustration of Ring Topology. Bus Topology Bus networks (not to be

Indp Final Essay

4433 words - 18 pages . At this time they have 19 Dell Vostro computers that share 3 HP networked printers these components are used by corporate management and other admin personnel. The communication that comes in or out of the La Jolla store runs through 2 cisco routers, and firewalls they help to provide an inter-store dedicated network and a separate 25Mbps link to the Ethernet. This location also has 19 VOIP phones. Del Mar and Encinitas Store Networks both are

Network design

657 words - 3 pages geographic factorsOur Implementation plan for implementing the new network will be cost effective and efficient. We will purchase the materials needed, such as hardware, software, cables, advise you on what kind of systems are needed, and what is needed for wireless communications. As well as getting IP address assigned so that there will not be any problems with the network being bottlenecked.As an organization grows its technology needs will

Business Networking and Communication

3694 words - 15 pages CHAPTER 8: NETWORKING AND DIGITAL COMMUNICATION Multiple Choice: 1. A basic computer network can be described as: A. a minimum of five computers linked together. B. a number of palmtop computers. C. two or more computers that are linked together. D. the use of satellites linking computers together. Answer: C 2. Reference: Basic Network Anatomy Difficulty: Easy The three essential components of every computer system include all of the

Freedom Lighthouse

903 words - 4 pages ____ facilitates communication and resource sharing between other computers on the network. A) servlet B) workstation C) personal computer D) server Points Earned: 1.0/1.0 5. ____ networks are the most popular type of network for medium- and large-scale organizations. A) Client/server B) Peer-to-peer C) Stand-alone D) Stationary Points Earned: 1.0/1.0 6. A ____ network is confined to a relatively small space. A) NAN B) MAN C) WAN D) LAN Points Earned

Issc340 Week 5 Assignment

444 words - 2 pages Name: _______________ Date: __ ISSC340 Week 5 Assignment (3% of Grade) APUS/Sanford Lesson 5 Review: Networking Models, Traffic and Devices The purpose of this activity is to reinforce what you have learned so far about local area networks technologies. 1. Describe the three modes of communication available on a network. (Minimum word count: 60) They are simplex, half-duplex, and full duplex. In simplex communication, data travels

Osi Model

816 words - 4 pages interact, how each protocol communicate with other protocols and what functions they perform. The communication process of the OSI model defines into 7 layers. Each layer can be update without affecting the other layer and can be implemented independently. The layers 3 to 1deals with communication between network devices while the layers 7 to 4 deals between the data sources and destination. The upper layers are layers 7, 6, and 5 and deals with the

Tcp Ip Lan Plan

563 words - 3 pages | | |data transmission and establishes local | | | |connections between two computers or host | | |Network layer |Is concerned with the addressing and |Path determination and logical addressing | | |routing processes

Indp Part 1

540 words - 3 pages keep it uniform at each location. The best way to upgrade the network is to use the OSI standards. “The Open Systems Interconnection model is a set of standards specifications that will allow various computer platforms to communicate with each other properly” (Cahill, 2010). By using a layered model it establishes a prescribed guideline for interoperability between each branch location and performs different data communication tasks, this way Kudler

Final Paper

3922 words - 16 pages isn't necessarily a cause for concern, as each production site has its own servers that can store the data for later upload to headquarters should there be an extended time the network is down. Through this project, we will migrate from a centralized computer network to a more dispersed Virtual Private Network that will expand our communication and support across our entire enterprise. In Riordan's network design, communication protocols

Week2 Part 1

556 words - 3 pages Kudler’s Fine foods current system is the main component that needs major improvement. Their communication systems run on a decade old analog system. The three offices of the industry have almost identical setups. Using Novel 4.11 for their servers, along with POS systems and their office site connectivity. They all use the same bus network topology for connection for their onsite connectivity. By using these computers, connects to a central bus that

Related Essays

Analysis Of Communication Network

3809 words - 16 pages analysis) of the person wearing it. In combination with social network analysis methods this allows us to draw conclusions about the actors’ communication behavior and reconstruct the social network in an optimized way. Systematic data collection or data entry errors, which occur in legacy approaches, are thus reduced. The article documents the results of a collaborative study by scientific project partners and a bank (Kreissparkasse Cologne

Tech 140 Essay

648 words - 3 pages -monitoring | ____ 4. A ____ facilitates communication and resource sharing between other computers on the network. |a. |servlet |c. |personal computer | |b. |workstation |d. |server | ____ 5. ____ networks are the most

Face Detetction Essay

1038 words - 5 pages . They act as central transmitter on receiver of WLAN radio signals. Access Points used in homes and offices are usually small, dedicated hardware devices featuring a built in network adapter, antennas and radio transmitter. They support Wi-Fi wireless communication standard. Some computers use power over Ethernet (EOP), this technology integrates power into a standard LAN infrastructure. It enables power to be provided to the network device

Network Design Essay

655 words - 3 pages  Network Management Team Job Aid Student Name Course Title Course Number Professor College Affiliation Date Week Two: Individual Choosing a network management protocol There are several network management protocols both for in-band and out-band management systems. To identify the best or suitable protocol for an organization it is important to consider factors like; 1. Type of communication 2. Ease of using 3. System