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NJSC «Medical university Astana »

Department of biostatistics, bioinformatics and information technologies

IWS Theme: Description of network topology of the office build-

ing. Stage Prepared by: Bazarbaeva Dina

Speciality:Dentistry

Group:106

Checked by : Аltаyevа А.U. Nur – Sultan 2020 y. CONTENT1. Introduction………………………………………………………………….….32. Main part……………………………………………………………….……….4

2.1 Network topology…………………………………………………………42.2 Point to point…………...……………………………………….…………4

2.3 Bus topology……………………………………………...…….…………5

2.4Ring topology………….………………………………..………..…….…..6

2.5Star topology……………………………………………………..…….…..7

2.6 Mesh topology………………………….……………………….…………9

2.7 Tree topologу…………………………………………….……….………10

2.8 Hybryd topology…………………………………………….…………....11

2.9Repeaters and hubs……………………………………………….….…....12

2.10 Modems……….……………………………………..…………………..13

2.11Nodes…………………………………………………………..…………13

3. Conclusion………………………………………………… ……. ……………13

4. Reference……………………………………………………………………….14 Introducnion.

The modern progress of mankind is associated primarily with the global informatization of the entire world community. The period to intercomputer interaction (computer networks) characterizes a qualitative leap in information transmission, which ensures remote computer interaction and the sharing of resources by all users. Information technologies form the basis of modern education and make it possible to create a single information space between various institutions. The Internet, telephony and local area network are the three main elements of the environment that makes up the inform

The Internet is an excellent source of information, and in the educational field it has already become an irreplaceable assistant. Thanks to the Internet connection, such opportunities have emerged as: distance learning, online conferences, participation in online Olympiads, and much more. The local network solves the problem of employee interaction. For example, in educational institutions, interaction between administration and teachers through electronic journals. Telephony also plays an important role. It transmits acoustic signals in real time. Thanks to these three components of the information space, it becomes easier for people of different fields of activity to work.

2.1.Network topology

Network topology is the topological structure of a network and may be depicted physically or logically. It is an application of graph theory wherein communicating devices are modeled as nodes and the connections between the devices are modeled as links or lines between the nodes. Physical topology is the placement of the various components of a network (e.g., device location and cable installation), while logical topologyillustrates how data flows within a network. Distances between nodes, physical interconnections, transmission rates, or signal types may differ between two different networks, yet their topologies may be identical. A network’s physical topology is a particular concern of the physical layer of the OSI model.

Examples of network topologies are found in local area networks (LAN), a common computer network installation. Any given node in the LAN has one or more physical links to other devices in the network; graphically mapping these links results in a geometric shape that can be used to describe the physical topology of the network. A wide variety of physical topologies have been used in LANs, including ring, bus, mesh and star. Conversely, mapping the data flow between the components determines the logical topology of the network. In comparison, Controller Area Networks, common in vehicles, are primarily distributed control system networks of one or more controllers interconnected with sensors and actuators over, invariably, a physical bus topology.

2.2 Point-to-Point Topology:

In point-to-point Topology, connection provides a common link between two devices. The entire bandwidth of the link is reserved for transmission between those two devices. This simplest point-to-point connections use an actual length of wire or cable to connect the two ends.

When you change TV channels by infrared remote control, you are establishing a point-to-point (P2P) connection between the remote control and the TV’s control system. Two Computers communication through the modems

Advantages: This is faster and more reliable network topology than other types of topologies since there is a direct connection.

2.3. Bus Topology:

A bus topology consists of a single cable with the terminator at each end. All available devices are connected to the single cable. One single cable acts as the backbone for the whole network.In a bus topology, one of the computers acts as the server and transmits the data from one end to the other in a single direction. When the data reaches to the extreme end, the terminator removes the data from the line.


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