Online chart design website recommendation-how to make a map in -ppt

Network Topology Diagram: The introduction of network topology diagram and the online production of network topology diagram refer to the physical layout of various machines and equipment interconnected through transmission media, that is, the way to connect computers and other machines and equipment in the Internet. The topology diagram shows the Internet devices in the cloud server and service center and their connections. There are many topological structures of the Internet, among which the star structure, ring structure and bus are the key ones.

Network topology diagram is usually drawn by network topology diagram software, and users can easily add, modify, save and copy it. These things will be a lot of trouble if they are operated by hand drawing. But it is not a problem for network topology software. In addition, for users who have access to the Internet, the network topology map in the form of software can undoubtedly be shared with others more conveniently.

Star layout

Star structure is the oldest connection method, and the telephone that people use every day belongs to this structure. Star structure means that all workstations are connected into a network in a star way. The network has a central node, and other nodes (workstations, servers) are directly connected to the central node. This structure takes the central node as the center, so it is also called centralized network.

This structure facilitates centralized control, because the communication between end users must pass through the central station. Because of this feature, it also brings the advantages of easy maintenance and safety. When the end-user equipment stops due to a fault, the communication between other end-users will not be affected. At the same time, its network delay time is small and transmission error is low. But the disadvantage of this structure is that the central system must have high reliability, because once the central system is damaged, the whole system will often be paralyzed. In order to improve the reliability of the central system, dual-machine hot backup is usually adopted.

Ring network topology

Ring structure is widely used in LAN. The transmission medium in this structure goes from one end user to another end user until all end users are connected in a ring. Data is transmitted in one direction between nodes in the loop, and information is transmitted from one node to another. This structure obviously eliminates the dependence of end users on the central system when communicating.

The characteristics of ring structure are: each end user is connected with two adjacent end users, so there is a point-to-point link, but it always runs in one direction, so it is called upstream end user and downstream end user; The information flow in the network is fixed, and there is only one path between two nodes, thus simplifying the control of path selection. All nodes in the loop are bootstrap control, and the control software is simple; Because the information source is transmitted in series through all nodes in the loop, when there are too many nodes in the loop, it will inevitably affect the information transmission rate and prolong the response time of the network. The cycle is closed and inconvenient to expand; Low reliability, if one node fails, the whole network will be paralyzed; It is difficult to maintain and locate the faults of branch nodes.

bus topology

Bus structure is a way to connect all end users by using the same medium or cable, that is, the physical medium of end users is shared by all devices, and all workstations have equal status and are not controlled by a central node. Most of the information on the public bus is transmitted in baseband serial, and its transmission direction always spreads from the node that sends the information to both ends, just like the information transmitted by the radio station, so it is also called broadcast computer network. When each node receives information, it checks whether the address is consistent with its own workstation address, and if so, it receives information on the Internet.

One problem that must be solved when using this structure is to ensure that the end users will not have conflicts when sending data through the media. This is very simple in a point-to-point link configuration. If the link is half-duplex, then only a simple mechanism is needed to ensure that two end users work in turn. In the point-to-multipoint mode, the access to the line depends on the query of the control terminal. However, in the local area network environment, because all data stations are equal, the above mechanism cannot be adopted. This paper studies a media access method for bus sharing network: carrier sense multiple access/collision detection, abbreviated as CSMA/CD in English.

The advantages of this structure are low cost, flexible network access for data end users, and the failure of one site or end user will not affect the communication of other sites or end users. The disadvantage is that only one end user can send data at a time, and other end users must wait until they get the right to send; The media access acquisition mechanism is complex; Maintenance is difficult, and it is difficult to find the fault of the branch node. Despite these shortcomings, it is the most widely used LAN technology, because its wiring requirements are simple and easy to expand, and the failure, addition and deletion of end users will not affect the work of the whole network.

Distributed topological structure

Distributed network is a form of network that connects computers distributed in different places through lines.

The network with distributed structure has the following characteristics: due to decentralized control, even if a part of the whole network fails, it will not affect the operation of the whole network, so it has high reliability; The shortest path algorithm is used to select the path in the network, which has less online delay time and high transmission rate, but the control is complicated. Data links can be established directly between nodes, and the information flow is the shortest; It is convenient for the resources within the whole network to enjoy. Disadvantages are long connecting cable and high cost; The network management software is complex; Packet switching, path selection and flow direction control are complex; General LAN does not adopt this structure.

Tree layout

Tree structure is a hierarchical centralized control network. Compared with the star structure, the total length of communication lines is shorter, the cost is lower, the nodes are easy to expand, and it is more convenient to find paths. However, the failure of any node or its connecting line will affect the system except the leaf node and its connecting line.

Mesh topology

In mesh topology, every device in the network has a point-to-point link connection, which is not economical. This method is only used when each station needs to send information frequently. Its installation is also complicated, but the system has high reliability and strong fault tolerance. Sometimes called a distributed architecture.

Cell topology

Cellular topology is a common structure in WLAN. It is characterized by point-to-point and multipoint transmission through wireless transmission media (microwave, satellite, infrared, etc.). ), and it is a wireless network, suitable for city network, campus network and enterprise network.

Mixed topological structure

Hybrid topology is a network structure that combines star structure or ring structure with bus structure, which can better meet the expansion of larger networks, solve the limitation of star network in transmission distance, and solve the limitation of bus network in the number of connected users.

Advantages of hybrid topology: it is widely used, solves the shortcomings of star topology and bus topology, and meets the actual needs of large companies. The expansion is quite flexible. Faster speed: because its backbone network adopts high-speed coaxial cable or optical cable, the whole network should not be too limited in speed. The disadvantage is that the bus length and the number of nodes are also limited because the broadcast message transmission mode is still adopted. It also has a weakness that the network speed will decrease with the increase of users. Maintenance is difficult, which is mainly restricted by the topology of bus network. If the bus breaks down, the whole network will be paralyzed.

There are many ways to create a network topology diagram. If you choose to draw the network topology online, it is recommended to use the online drawing website: freedgoDesign. FreedgoDesign, whose access address is:

. Freedgodesign online drawing website is a multi-type graphic design software. The software content comes with rich geometric templates, which can be used to draw professional network topology diagram, swimming lane diagram, influence diagram, SDL diagram, approval diagram, accounting network topology diagram and so on. , providing rich examples of network diagrams, making it easier to get started.

In a specific network topology diagram, business logic needs to be decomposed into smaller and more specific steps. Then, consider any possible anomalies in the process, and if so, add decision nodes for the alternative paths.

Continue to repeat this process until you reach a simple step that everyone can fully understand.

Now, let's take a look at how to make a good-looking network topology map with FreedgoDesign.

Step one:

visit

, first register a user. After successful registration, log on to the home page.

Step two:

visit

/draw_, enter the drawing page, or click the menu at the top of the home page to start making.

Enter the drawing page and click File-> New self type->; Network architecture->; network diagram

Or click on the legend to find the network architecture in the legend->; Network Diagram, select a similar legend to make changes.

Step 3:

Drag the appropriate geometry from the symbol bar on the left onto the canvas. When you let go, the oval shape will be fixed on the canvas. Double-click the geometry and enter text. When the mouse is placed on the graph,

A "small triangle" will be displayed around the graph, which is convenient for users to quickly generate new graphs after clicking.

Step 4:

The software provides a variety of connection methods. In this network topology diagram, you can choose ordinary right-angle connectors. On the connector, you can also enter text for further explanation.

Step five:

The tools for making network topology maps have a rich set of styles. Users can fill closed graphics with monochrome and gradient, and adjust the text size and position color. The network topology diagram full of patterns has improved the face value a lot.

Step 6:

According to the drawing requirements, draw the network topology diagram step by step. Finally completed the task of drawing the whole picture.

[Note]: How to design an online network topology diagram How to draw an online network topology diagram How to draw a network topology diagram Network topology tools Physical network deployment diagram Network topology diagram and deployment architecture diagram Basic network diagram Making network topology diagram making.

How to make a map in ppt hello

Usually, when making PPT, we often use data from some regions. If expressed in words, I always feel that something is missing, which is not intuitive enough. If you can convert the text into a map and display it, I believe it will bring good visual effects.

For example, the regional statistical chart of order quantity is as follows:

So how to make such a dynamic diagram in PPT? I'll teach you how to do it today.

Dynamic map

1. The chart shows that

First, let's go to a chart display website, which is a useful online chart making website. With it, we can realize all kinds of cool dynamic chart effects in PPT!

2. Add an add-in

To add a dynamic map, we first need to add a plug-in to PPT, click Insert-Plug-in -App Store, then search for WebViewer to add, and then adjust the position and size of the webpage browsing box.

compile data

Click New Chart, choose the style you like in the map, and then click Edit Data.

At this time, you can modify provinces and corresponding indicators, or you can directly import Excel files for matching.

At the same time, you can set some properties of the map, and you can click on the color scheme to choose your favorite color scheme.

Copy link

When you are finished, click Save, and then click Share to generate the link. At this point, click the copy link.

Go back to the PPT interface, copy the link to the desktop, and remember to put one on it.