The use of the telnet command on the Windows 10 operating system can be roughly divided into two parts:
Part 1: Configure telnet
Part 2: Entering the Black Window
Finally, let's debug and try connecting to the server.
Part 1:
Firstly, configure telnet through the control panel
Open: Control Panel - Programs - Start or Close Windows Functions - Check Telnet Client
Part 2:
Keyboard key operation: window+r - enter cmd enter - enter the original black window - enter telnet enter - enter quit to exit telnet mode
Debugging section:
Thinking organization:
1. The telnet on the window side has been opened
2. The ping command check shows that the network condition is unobstructed
3. And there's something I don't know about

In the words of an industry insider, the spelling of 'telephone' for companies here in the future should be 'television'. This indicates a trend: future telephone companies are transitioning towards television. So, what is the actual development of IPTV?
IPTV has become a fashionable term nowadays, at least in the telecommunications industry, it has become a word that is almost used every day and is increasingly being discussed by people. At the Telecom NEXT conference held in the United States in late March, most of the presentation was about how phone companies deliver video programs. In the words of an industry insider, the spelling of 'telephone' for companies here in the future should be 'television'. This indicates a trend: future telephone companies are transitioning towards television. So, what is the actual development of IPTV?
Firstly, consumers do not know what IPTV is.
A recent survey shows that nearly half of American and European consumers do not know what IPTV is. According to a survey of 6000 users in the United States and Europe (including Spain, the United Kingdom, Italy, France, and Germany) conducted by Accenture, a leading management consulting firm, 46% of users are unclear about what these letters IPTV refer to. In Italy, even 4% of respondents believe that IPTV is a new television competition program.
People in the telecommunications industry are enthusiastic about using technical terminology in their marketing, but the survey results above indicate that this approach is not suitable for IPTV. What telecom companies should do is focus on selling the concept of IPTV: it can enhance the experience of ordinary viewers watching TV, and it is expected to provide more advanced interactive services in the future, which requires a process of market cultivation.
Secondly, there is no mature charging model yet.
Price is a major obstacle to IPTV. In the survey conducted by Accenture, 54% of respondents stated that they are unwilling to pay additional fees for an entertainment service that allows them to search for TV, radio, and music programs at any time.
The IPTV revenue and expenditure model is based on many assumptions, but these assumptions assume a well known and stable market, while at the same time, the core definition of IPTV is in flux.
The behavior and traffic patterns of users will guide the development of the industry. The most important part is to distinguish between online traffic and offline traffic. The biggest concern of network owners is that they only provide a network that others can use for free without receiving any benefits from traffic. So, they must distinguish between online services and offline services. Layered services will protect the interests of both network owners and users.
Once again, telephone companies still face legal obstacles in terms of television services.
In the United States, wired services need to be provided under the policy supervision of county and city governments. For telephone companies, negotiating with the government at the local level is time-consuming. Verizon once mentioned that even if it receives a local license one day, it still takes several years to provide video services to all its users.
The new laws in Texas and Indiana allow telephone companies to obtain licenses from the state government without the need for local authorization, thus greatly simplifying the already lengthy process. Virginia has passed a similar law, but it has not yet taken effect. Currently, IPTV is actually guided by smaller companies, many of which serve rural areas. In addition to obtaining some concessions, their systems are smaller, making it easier for them to adopt new technologies. For large telephone companies, the franchise war is harsh, as they have to deal with thousands of local governments.
Finally, the biggest challenge is that the entire IPTV industry may underestimate what it should do to deliver services, as user experience rather than technology is the most critical factor for IPTV. Although IPTV has some technical advantages, it remains to be proven whether these advantages can win and retain users. Meanwhile, some analysts believe that IPTV does not really need a technological advantage to compete with cable companies. For consumers, convenience is a temptation. Being able to obtain wired telephone services, wireless telephone services, broadband internet services, and television services from a company, also known as "quadruple playback," has great appeal to consumers. The survey shows that users have a clear interest in the types of services that IPTV can provide. For example, in the United States, 37% of respondents choose to be able to watch programs anytime when it comes to how to better watch TV. Moreover, 30% of respondents in Europe stated that they need more movie channels, which IPTV can provide technically.
However, from the above content, it can also be seen that many IPTV implementations are involved in old paradigms such as telephone services, television, video on demand, and so on. After all, IPTV is only an improvement, not a true innovation. When the market changes and remains stuck in the old paradigm, perhaps one day, operators will have to significantly lower prices to retain users. Therefore, in order to win in long-term competition, telephone companies should make certain changes in direction and develop more other service content. Moreover, it should be a revolutionary business with true innovation and an order of magnitude of improvement. And this is something that IPTV operators have not truly solved.

Docker for Windows is a Docker Community Edition (CE) application. The Docker for Windows installation package includes everything necessary to run Docker on a Windows system. This topic introduces pre installation considerations and how to download and install Docker for Windows.
What to know before installation
If your system does not meet the requirements for running Docker for Windows, you can install the Docker Toolbox, which uses Oracle Virtual Box instead of Hyper-V.
Docker Toolbox and Docker Machine users must read: Docker for Windows requires running Microsoft Hyper-V. If necessary, the Docker for Windows installation program will enable Hyper-V for you and restart your computer. After enabling Hyper-V, VirtualBox will no longer function, but any VirtualBox VM images will be preserved. The VirtualBox VM created using docker machine (including the default virtual machine typically created during toolbox installation) will no longer start. These virtual machines cannot be used in parallel with Docker for Windows. However, you can still use docker machine to manage remote VMs.
Virtualization must be enabled. Typically, virtualization is enabled by default. (Please note that this is different from enabling Hyper-V.).
The current version of Docker for Windows runs on 64 bit Windows 10 Pro, Enterprise and Education (1607 Anniversary Edition, Build 14393 or higher). In the future, we will support more versions of Windows 10.
Containers and images created using Docker for Windows are shared among all user accounts on the installed machine. This is because all Windows accounts will use the same virtual machine to build and run the container. In the future, Docker for Windows will better isolate user content.
Nested virtualization scenarios, such as running Docker for Windows on VMWare or Parallels instances, may work, but cannot be guaranteed (i.e. not officially supported).
Docker for Windows installation includes: providing Docker Engine, Docker CLI client, Docker Composite, Docker Machine, and Kitematic.
Installing Docker for Windows
1. Double click Docker for Windows Installer.exe to run the installation program.
If you have not yet downloaded the installation program (Docker for Windows Installer. exe), you can obtain it from download.docker.com..
2. Follow the installation wizard to accept the license, authorize the installation program, and then continue with the installation.
You will be required to use the system password to authorize Docker.app during the installation process. Requires privileged access to install network components, link to Docker applications, and manage Hyper-V virtual machines.
3. Click Finish on the installation completion dialog box to launch Docker.
Starting Docker for Windows
Docker cannot start automatically. To click Start, search for Docker, select the application in the search results, and then click it (or press Return).
When the whale in the status bar remains stable, Docker can run normally and be accessed from any terminal window.
If the whale is hidden in the Notification area, click the up arrow on the taskbar to display.
If you have just installed the application, you can also receive a pop-up success message, provide subsequent steps, and provide a link to this document.
After initialization, select 'About Docker' from the notification area icon to verify if you have the latest version.
congratulations! You are running Docker for Windows.

Office 2019 is a new office suite launched by Microsoft. The latest version brings many features and different office experiences. The Professional Plus Edition of Office 2019 has the most functional components, including Word, Excel, Access, Powerpoint, Outlook, Publisher, Skype for Business, and OneDrive for Business. It extensively integrates the functions needed in daily life, as well as its innovative online icon insertion, ink writing, new functions Eight major functions, including horizontal page flipping, Chinese Hanyi font library, immersive learning, multi monitor display optimization, and label switching animation effects, help work more efficiently and conveniently.
Software Information
[Product Name]: Office 2019
File size: 3.61 GB
[Software Language]: Chinese (Simplified and Traditional) English Other
[Running environment]: Win10 or higher version
[Authorization Information]: Permanent activation/Support for updates/Support for reinstallation
Installation steps
Firstly, your computer must be a Win10 system, and it is best not to have other versions of Office in your computer. If there are other versions of Office, please uninstall the previous version of Office in the control panel first.
After downloading Office 2019, as shown in the figure above, it is an iso CD image file. Click the right mouse button ->Open with ->Windows Explorer.
Then double-click on the red Setup.exe to run the file and install it directly! The following is a waiting process for installation
After installation, it will not automatically create shortcuts. We can find all the installed Office 2019 program components on the Start menu.
Activate software
1. Open any component of Office 2019 (Access, Excel, PowerPoint, or Word), click on File ->Account ->Change License in the upper left corner, and a box for entering the product key will pop up. After entering the Office 2019 activation key, click "Activate Office".
2. Subsequently, close Word and reopen it. The wizard window will be prompted to activate, select "I want to activate the software through phone call", click Next, as shown in the following figure, and then proceed to the next step.
3. Send me the installation ID below in step 2, and we will help you submit your installation ID to the product center. Please be patient and wait!!! 4. After the verification is successful, I will inform you that you click on "Back" and select "I would like to activate the software through the Internet"
5. Then click on 'Next' and wait for a moment. The activation wizard will display that the replica has been activated.

Definition of IPTV
What is IPTV? This is a fundamental issue.
Before the introduction of the definition of IPTV by the International Telecommunication Union, different standardization organizations and related enterprises had various interpretations of IPTV, and in China, IPTV was also translated into various forms - interactive television, online television, interactive television
At the same time, different industries, operators, and equipment manufacturers have different opinions on what IPTV can do. Although the prospects of IPTV have been described as a huge cake, how to slice the cake has become the focus of industry attention, and all parties are doing their best to seize the opportunity in this huge market.
In fact, due to unclear policies leading to unclear industrial models, behind the popularity of China's IPTV industry, more people are cautiously watching; The limitations of bandwidth and content, as well as the barriers to unified terminal standards, have led to the inability to promote IPTV on a large scale, many experiences cannot be summarized, manufacturers are at a loss, and marketing has also fallen into the awkward situation of thunder, rain, and little. Therefore, the introduction of IPTV international standards will to some extent change the awkward situation of unclear identity, uncertain standards, and feudal separatism.
In the IPTV standards published by the International Telecommunication Union, the definition of IPTV is as follows:
IPTV is a multimedia service, such as television, video, audio, text, images, data, etc., and has certain QoS/QoE, security IPTV is defined as multimedia services such as television/video/audio/text/graphics/data delivered over IP based networks managed to support the required level of QoS/QoE, security, interactivity, and reliability.
From the definition of IPTV by the International Telecommunication Union, we can see that it mainly includes the following meanings:
IPTV is a multimedia service, and services such as television, video, audio, text, image, and data are all manifestations of IPTV;
IPTV is carried on a manageable IP network and has corresponding level requirements for security, reliability, interactivity, and service quality.
IPTV is not so much a business as a service. Although it may seem like a different translation of a word, it means looking at IPTV from different perspectives, and "business" is more from within the operator, which is the business project used by the operator to earn profits; However, "service" is defined from the perspective of customers, that is, IPTV can meet the needs of different categories of customers. Therefore, the author prefers to interpret IPTV as a service to customers rather than an internal business of the operator.
Through this definition, we can find that concepts such as online television and interactive television are only a description of IPTV's image and cannot fully cover the meaning of IPTV. However, this definition still has certain positive significance for promoting IPTV and promoting its development in China.
IPTV service requirements
In the IPTV standard, the service requirements of IPTV are subdivided and listed according to service direction, function, etc. Some are required, some are recommended, and some are optional. This is actually a law that has been explored based on summarizing the development experience of IPTV around the world.
In the early stages of IPTV development, people wanted to incorporate all the functions that the Internet could provide, not only to achieve video on demand, video live streaming, online browsing, but also to achieve applications such as videophone or conference television, pursuing "large and comprehensive". However, this is not realistic, as the result often makes the devices and systems too complex and the network overwhelmed. Therefore, it is not only necessary but also necessary to classify IPTV services appropriately.
In short, IPTV is a new industry formed by the intersection of multiple traditional industries, including operators, equipment manufacturers, content providers, terminal manufacturers, and other links. The coordination and integration of the industry chain is the determining factor for its market success; The value chain of IPTV is more complex, involving multiple types of enterprises such as set-top boxes, CDNs, DRMs, middleware, audio and video codecs, etc. The complexity of the IPTV system and architecture can be seen from its standard documentation.
1、 Service requirements required
Support content of different resolutions, including high-definition (HD) and standard definition (SD) standard TV programs;
Support different display ratios, such as 4:3, 16:9, etc;
At least one method is supported to avoid sending content that cannot be displayed to IPTV terminals (such as set-top boxes);
Capable of measuring service quality for key parts and points;
Can define key services and their interfaces with other domains;
Allow two-way communication between end users and service providers;
Support addressable specific devices, such as IPTV terminals in user networks;
Allow the use of internet protocols and standards. recommend
Support content segmentation;
There is a mechanism for obtaining relevant terminal device functions;
There are corresponding functional blocks that can provide open interfaces for third-party applications to use IPTV network functions and resources;
Ensure the integrity of content and segmented data;
Support online personal video recording;
Support the display of multiple video streams;
Allow IPTV services to be sent over different networks (such as cable television networks, fiber optic networks, xDSL, wireless networks, etc.);
Allow IPTV services to run on different IPTV terminal devices (such as mobile phones, PDAs, set-top boxes, etc.);
When sent through a mobile network, the IPTV architecture should be able to dynamically adapt to changes in wireless network parameters (such as bandwidth, packet loss rate, etc.);
Support tracking and investigation of ratings and other data;
(Note: This tracking survey may allow content providers and service providers to publish audience rating services, track data of popular programs, or push specific advertisements for users with certain surfing preferences)
You can upgrade software versions and download system configuration data by connecting to the download server;
Support the use of XML encoding for application signaling;
Only specific users can be allowed to view certain content, and this authorization can be triggered by service providers or users;
The manifestation can vary depending on the usage environment;
Terminal devices should be able to explain the actual usage environment, such as service type, terminal type, transmission medium type, user interface, available service level
Optional
Support the storage and distribution of individual fragments or entire media content;
Alternative methods supporting content caching and distribution;
Can be interspersed with advertisements;
Support time shift TV function (playback of played content);
Support a description of the usage environment. Terminal device options
Support the change of display time;
Require support for at least one audio and video decoding format;
Ensure correct time synchronization control, such as being able to maintain consistency between the sound and video mouth shape no matter when the audience pauses, replays, or randomly accesses at any time;
Support the recording of data files or playback of audio and video content on the network or IPTV terminal devices;
Within the authority of the digital broadcasting network, seamless switching of encoding and decoding technology is supported, such as the ability to schedule daily switching between high-definition and standard definition content.
（1） Settlement and billing required
Support various payment methods for IPTV service fees (such as prepayment, use before payment, notification payment, third-party payment, etc.);
All IPTV services can use NGN's billing architecture for settlement and accounting functions;
IPTV needs to have a data and historical information collection mechanism for financial settlement and reporting purposes, partner settlement, and end-user reconciliation, such as subscription, purchase, and transaction records of services;
Support other billing and settlement methods related to IPTV services.
recommend
Allow service providers to integrate the settlement and billing functions of IPTV services into multiple NGN services and applications;
Settlement information can be transmitted between service providers.
1. Subscription
Support the registration function of users.
2. Pay per visit
To purchase appropriate VOD content to fulfill the licensing agreement.
3. Income system required
There is a mechanism to support PPV (Pay Per View) services;
To support On Demand services;
Consider the need to insert other content into VOD content;
Support interactive services such as educational and entertainment applications (such as games), communication services (such as email, chat, and SMS), and information services (such as stock and weather forecasting services);
Support the distribution of interactive and downloadable games;
Support the search, download, storage, and display of digital photos;
As long as there is a regulatory need, corresponding content can be sent to specific regions;
Allow service signaling to be routed based on the capacity of end users' devices or application servers;
Consider the manageability of service transmission quality across multiple domains;
Support Network Address Translation.
recommend
Support the integration of IPTV services with existing services (such as instant messaging, telephone);
Allow seamless provision and operation of IPTV services within different management domains;
If it supports the retransmission of radio programs, it is recommended to support geographical differentiation of content;
Support remote configuration and management of network and service elements;
Can receive content from different sources, such as satellites, IP private networks, etc;
There is an information exchange mechanism that can obtain profile information of users who meet certain conditions (such as ID information in digital rights management);
Support the establishment of conversation pathways that maintain relationships between users and their applications.
Optional
Content can be locked or restricted based on user profiles and usage preferences;
Can convert video content from its original storage format to a compatible format that IPTV terminal devices can display;
Allow users to become content providers in order to share their content;
Service providers can block and prevent a large amount of unsolicited content from being sent to end users;
The source of the content can be traced (if the content has caused complaints or complaints from end users).
（2） Subdivision by Role
1. Content provider
Support content providers to manage content, such as uploading, deleting, or modifying related attributes of content;
Allow content providers to collect usage information on content.
2. Service provider required
Allow service providers to operate, manage, maintain, and provide (OAMP). IPTV equipment;
Service providers can easily manage IPTV service failures, configurations, settlements, performance, and security (FCAPS);
Monitor network equipment (such as routers) and service equipment (such as IPTV terminals), and alarm in case of failure;
The service content can be integrated and displayed through IPTV devices, and can be sent through non IP or IP methods;
Allow IPTV services to be distributed through agreed third-party providers;
Electronic navigation function supporting IPTV content
Service providers can verify user information, authorize users, and charge subscribers;
Support service providers to verify the permissions of end users to purchase products, order VODs, or watch restricted programs, such as using PIN codes or login methods;
Service providers need to be able to distinguish between end users and subscribers.
recommend
If the retransmission of broadcasting services is supported, it is recommended to provide the same QoE (user experience) as the direct receiving user;
Service providers can operate various types of services;
The service provider has subscription management functions, such as opening, canceling, activating, or freezing accounts, checking user account balances, searching for detailed consumption records, correcting user information (such as account name, login name, payment method, etc.), and dividing whether it is a group user;
Service providers should ensure normal service while also preventing misuse of services;
P2P mechanism can be recommended in IPTV, but it does not exclude the use of CS (client server) mechanism.
Remote management requirements
Service providers should be able to remotely upgrade end users' devices;
Support service providers to obtain QoS (Quality of Service) information from terminal devices;
The service provider should have access to the functions of the user's IPTV terminal device (such as codecs, access restrictions, etc.);
Recommend service providers to remotely upgrade terminal devices, such as upgrading software, drivers, and updating virus libraries.
Content push requirements
Support service providers to push content to end users' IPTV terminal devices (content can be requested by users or not);
Service providers can insert additional content into users' PVR content playback.
3. Network provider
If wireless broadcast retransmission is supported, it is necessary to ensure that network providers protect the privacy of end users like broadcast networks.
4. End users
essential
Can filter out unwanted content;
Allow end users to switch between free (FTA) and pay per view (PPV) environments;
Users can choose their own settings (including audio, dialogue, subtitles, additional videos, and explanatory audio) from multiple language versions of the content;
Users can turn on or off audio, dialogue, subtitles, and additional audio and video at any time without changing the preset options;
Users can store and retrieve configuration files for their preferred settings and language settings, so that different users can switch between different configuration files.
recommend
Support subscribers to query a detailed list of usage records.
Optional
Content providers can set language options for their own content.
（3） Association with other service networks is required
IPTV terminal equipment should continuously monitor EAN (Emergency Alarm Notification) information;
To manage all IPTV subscribers, it is not ruled out to use HSS (primary user server), SLR (service level requirement), or NGN related functional components.
recommend
Support interoperability and user mobility between different IPTV networks, allowing users to access IPTV services regardless of whether they are mobile or not;
Allow network operators to comprehensively utilize their existing network capabilities;
Support service providers or network operators to integrate IPTV's subscriber management function into a subscriber management system, which can be applied to multiple NGN services, including IMS (IP Multimedia Subsystem) based services;
It is recommended to integrate IPTV services in an IMS based environment, which relies on the specific functions of IMS based NGN, including (but not limited to) HSS, SLR, and GUP.
Support real-time encoding and precoding of stored programs;
Support the exchange of IPTV service information between different IPTV service providers, such as sources, channels, service start and end times, and QoS information. (To be continued)

According to predictions from globally renowned data analysis and consulting firm GlobalData, the total revenue of Singapore's pay TV market will decline at a compound annual growth rate (CAGR) of 1.4% from 2020 to 2025 due to a decrease in IPTV subscription volume.
The latest "Singapore Telecom Operator National Intelligence Report" released by GlobalData shows that due to increasing consumer demand for OTT video platforms, the number of IPTV subscribers in the country will decline at a compound annual growth rate of 2% in the forecast period from 2020 to 2025. The penetration rate of pay TV households will also decrease from 39.3% in 2020 to 33.8% by the end of 2025.
Deepa Dhingra, an analyst in the telecommunications industry at GlobalData, said: "After users of Starthub (Singapore Telecom) have fully transitioned from cable TV to IPTV services, Starthub will become an IPTV dedicated platform in Singapore to provide pay TV services by 2025. During this period, SingTel (Singapore Telecom) The company will lead the local pay TV market by offering independent pay TV packages through promotional discounts, and has developed multiple bundled sales plans aimed at attracting new subscribers. SingTel has been offering discounts of up to 50% for various IPTV packages and offering free subscription services for up to three months, including multicast services bundled with fiber optic internet and pay TV services.

Visio 2019 Professional is a powerful design Gantt chart chart, design logic diagram and design thinking diagram software. Users can design flow charts, Gantt chart charts, logic charts, and design thinking charts on Visio 2019, with a wealth of built-in design tools. Combining most office functions, this software is more suitable for office use, allowing employees to continue working on their familiar interfaces. There are many built-in functions and integrated office tools. With the help of the familiar Office experience, Visio allows you to easily and intuitively create flow charts, network diagrams, organizational chart, engineering designs, and other content using modern shapes and templates. Recreate process maps, map IT networks, build organizational chart, or document business processes,
Software Download
The download address for Visio 2019 Professional Edition provided on Microsoft's official website. You can directly open and save using a browser, or download using the Thunderbolt tool.
Simplified Chinese version:
http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/media/zh-cn/VisioPro2019Retail.img
Download address in Traditional Chinese:
http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/media/zh-tw/VisioPro2019Retail.img
English version:
http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/media/en-us/VisioPro2019Retail.img
Japanese version:
http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/media/ja-jp/VisioPro2019Retail.img
Korean version:
http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/media/ko-kr/VisioPro2019Retail.img
French version:
http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/media/fr-fr/VisioPro2019Retail.img
Finnish:
http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/media/fi-fi/VisioPro2019Retail.img
German version:
http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/media/de-de/VisioPro2019Retail.img
Software installation
After downloading the Visio 2019 Professional Edition, double-click to open it (if it cannot be opened, you can also extract it).
Select the 'Setup' executable file, right-click and select 'Run as administrator'
After installation, it will not automatically create shortcuts. You can find 'Visio' from the start menu in the bottom left corner of the computer screen to open it.
Software activation
1. After opening [Visio], a box for entering the product key will automatically pop up (if the key box does not pop up, click on File ->Account ->Change License in the upper left corner). After entering the Visio 2019 activation key, click on "Activate Office".
2. Then close Visio and reopen it, and you will be prompted to activate the wizard window. Select "I want to activate the software through phone call", then click Next, as shown in the following figure, and then proceed to the next step.
3. Send me the installation ID below in step 2, and we will help you submit your installation ID to the product center. Please be patient and wait!
4. After giving you feedback and confirming the ID, enter the confirmation ID in the box below step 3, consisting of 6 numbers. Once filled in, click the Next button.
5. Then click on 'Next' and wait for a moment. The activation wizard will display that the replica has been activated.

Project Professional 2019 is an excellent project management software. Use Project Professional 2019 to quickly establish Gantt chart and daily table, easily plan project progress, reasonably allocate relevant resources and improve work efficiency. The Project Professional Edition has all the features of the Standard Edition and includes collaboration tools and resource management, SharePoint task synchronization, submission of timesheets, and other functions.
Software Download
The download address for Project Professional 2019 provided on Microsoft's official website. You can directly open and save using a browser, or download using the Thunderbolt tool.
Simplified Chinese version:
http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/media/zh-cn/ProjectPro2019Retail.img
Download address in Traditional Chinese:
http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/media/zh-tw/ProjectPro2019Retail.img
English version:
http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/media/en-us/ProjectPro2019Retail.img
Japanese version:
http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/media/ja-jp/ProjectPro2019Retail.img
Korean version:
http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/media/ko-kr/ProjectPro2019Retail.img
French version:
http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/media/fr-fr/ProjectPro2019Retail.img
Finnish:
http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/media/fi-fi/ProjectPro2019Retail.img
German version:
http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/media/de-de/ProjectPro2019Retail.img
Installation instructions
After downloading Project Professional 2019, double-click to open it (if it cannot be opened, you can also extract it)
Select the 'Setup' executable file, right-click and select 'Run as administrator'
After installation, it will not automatically create shortcuts. You can find 'Project' from the start menu in the bottom left corner of the computer screen to open it.
Activate software
1. After opening [Project], a box for entering the product key will automatically pop up (if the key box does not pop up, click on File ->Account ->Change License in the upper left corner). After entering the Project 2019 product key, click on "Activate Office".
2. Then close Project and reopen it, and you will be prompted to activate the wizard window. Select 'I want to activate the software through phone call', and then click 'Next'
3. Send me the installation ID below in step 2, and we will help you submit your installation ID to the product center. Please be patient and wait!
4. After giving you feedback and confirming the ID, enter the confirmation ID in the box below step 3, consisting of 6 numbers. Once filled in, click the Next button.
5. Then click on 'Next' and wait for a moment. The activation wizard will display that the replica has been activated.

Office 2019 and 2021 have significant differences. Office 2021 has added features such as automatic theme switching, saving shapes as images, one click writing suggestions, creating exquisite Visio icons in Excel, using built-in translation tools to break language barriers, grammar checking, and applying the same signature to all devices.
1. Genuine Office Home and Business Edition 2021 Office Software
Office Business Edition 2021 is suitable for homes and small businesses that require classic Office applications and email. It includes Word, Excel, PowerPoint, and Outlook for Windows 11 and Windows 10. The one-time purchase of this product can be installed on a Windows PC or Mac for home or office use.
Office 2021 is sold as a one-time purchase, which means that you can obtain Office applications on one computer by paying a one-time payment in advance. A one-time purchase product is suitable for both PC and Mac. However, there is no upgrade option for one-time purchases, which means that if you plan to upgrade to the next major version, you will need to purchase it at full price.
Extended Information
Do I need to connect to the Internet to run Office?
Installing and activating Office requires an internet connection, but once it is fully installed on the computer, there is no need to connect to the internet when using Office applications such as Word, Excel, and PowerPoint.
Office 2021 is a one-time purchase product that comes with classic applications such as Word, Excel, and PowerPoint for PC or Mac, and does not include any services included with Microsoft 365 subscriptions. The one-time purchase of the product does not include an upgrade option, so if you plan to upgrade to the next major release version, you must purchase it at full price.
Cool animations are easy to create, and static graphics and text come to life instantly
Smooth switching function can create a smooth transition effect for the same objects on the front and back slides. It does not require tedious path animations, but simply adjusts the position, size, and angle of the object to achieve a natural transition and seamless switching animation effect with just one click,
Office Home and Small Business Edition 2021 Office Software
One time purchase, suitable for 1 Windows PC or Mac, Word, Excel, PowerPoint, and Outlook Classic 2021 version; Compatible with Windows 11, Windows 10, or macOS*
2. Genuine Office Home and Small and Medium sized Enterprise Edition 2019 Office Software
Office 2019 small and medium-sized enterprise template and familiar scheduling tools can improve the work efficiency of project managers and teams
For everyone working from home, individual users, and students, the most valuable component is that the Office 2019 Small and Medium Business Edition combines all of these. It is just a device license that includes Word, Excel, and PowerPoint programs. OneNote is also part of this software package and can be downloaded from the Windows Store in Windows 10. Users can directly store data offline on their computers, or use OneDrive or similar providers to store data online in the cloud. Do more at home or school ": This is Microsoft's motto, and this version of Office 2019 can also be followed.
Cool animations are easy to create, and static graphics and text come to life instantly
Smooth switching function can create a smooth transition effect for the same objects on the front and back slides. It does not require tedious path animations, but simply adjusts the position, size, and angle of the object to achieve a natural transition and seamless switching animation effect with just one click, like transitioning in the same slide.

According to the pay TV forecast update report from the analysis company Digital TV Research, the number of IPTV users will surpass that of cable TV by 2026. Between 2021 and 2026, IPTV will increase by 63 million users, bringing the total number to 398 million.
The main reason for this situation is that the huge shift from cable television to IPTV in China will continue, "explained Simon Murray, chief analyst of digital television research.
By 2026, China will have 226 million IPTV users, while the rest of the world only has 172 million left. Between 2021 and 2026, China will add 19 million IPTV users. However, by the end of 2026 during the same period, China will lose 39 million cable TV users, bringing the total number to 89 million.
Digital TV Research predicts that between 2021 and 2026, pay TV users will increase by 13 million, bringing the global total to 1.01 billion. China will continue to provide nearly one-third of the world's pay TV users, expected to reach 315 million by the end of 2026. India will account for 178 million. By 2026, China and India will jointly account for half of the global pay TV users.