The recognition that set-top boxes are transitional products of digital TV has been generally recognized. However, with the popularization of digital TV and the emergence of emerging technologies in the past two years, we need to re-understand the role of set-top boxes. The original set-top box appeared as a pure digital signal conversion device, the purpose is to convert digital signals into analog signals, so that analog TV can display the programs transmitted through the digital signals. The initial set-top box implements a signal conversion function. This function will serve as the main role of the set-top box throughout its life. With the development of set-top box technology and the increase in demand, some additional functions have slowly been added through the software, such as adding an electronic program guide for the preview program to the set-top box, data broadcasting for publishing government information on Huimin, for VOD on-demand increase revenue, used to manage the user management system of the set-top box, used to control the CA system of charging. Such a clear "integrated set-top box" function implementation architecture is presented. In the previous consciousness, we usually think that the set-top box is a transitional product. The final product must be the fusion of the set-top box and the TV, which is the future smart digital TV integrated machine. However, we need to have a deeper understanding of this view. One is the "transitionality" of the "set-top box is a transitional product", and the other is the "futureness" of the "integrated smart digital TV in the future." With the wave of smart revolutions in mobile phones this year, the concept of "intelligent set-top box" began to enter the stage of history, and the aura of "integrated set-top box" was dim and moved towards the curtain call. "Integrated set-top box", as the name suggests, is that the various software in the set-top box are integrated with each other, and it is difficult to change at one time. Just like non-smartphones, it is impossible to change the software inside. The "smart set-top box" refers to an operating system platform. Just like a PC, the operating system and application software are separated from each other. As long as the hardware and operating system support capabilities are sufficient, the application software can be loaded without restrictions. Just like today's Apple smartphones and Android smartphones can already load hundreds of thousands of applications. Obviously, the transitional performance of the "integrated set-top box" is very obvious, and it belongs to the backward technology that is inevitably eliminated. The era of intelligent set-top boxes has arrived. "Glan Research believes that open platforms are the future development trend of set-top boxes. Smart set-top boxes have the advantages of application platforms that traditional set-top boxes do not have. With the help of open platforms, set-top boxes will become smart devices between TVs, networks and programs. ; Smart set-top boxes can also assume the role of home gateways, forming new features with multiple interfaces, multi-service perception and bearing, and manageability; with all kinds of peripheral application terminals, it can easily expand the various based on home communication, entertainment and life applications Services to provide home users with a richer and more comprehensive information service. " However, does the smart set-top box also have obvious transitional characteristics? I think that although the smart set-top box also has transitional characteristics compared to the all-in-one machine, this transitional characteristic is not obvious for a long time. According to the normal technical development, the hardware and software performance of the smart set-top box must be able to make great progress, and even achieve the performance of the current PC. In this way, the smart set-top box has vitality and can meet all the future digital TV all-in-one machines. The function can be realized, the difference is that it is not integrated in the TV. It takes a long time for the digital TV all-in-one to replace all the traditional TVs. During this time, the smart set-top box will exist as a substitute for a long time, and when the family has a digital all-in-one, it will still exist in the second. The coexistence of a common TV set and a smart set-top box, such as remote areas and economically backward areas, where the development of digital TV lags, will also extend the life of the smart set-top box. And with the external set-top box power supply, the failure rate of the set-top box is greatly reduced, and maintenance will be very convenient. It is conceivable that smart set-top boxes will exist for a long time. The "future" of the intelligent digital TV integrated machine. As the future intelligent multimedia integrated information service terminal of the family, the intelligent digital TV integrated machine must be the development direction. However, limited by the exploration of the business model and the limitation of the closed technical system, the intelligent digital all-in-one still needs to do a lot of promotion work. During this period of time, the set-top box needs to complete the transition from "integrated" to "smart", and the process of set-top box intelligence also laid the foundation for the development of intelligent digital integrated machines, and the length of time that the set-top box achieves intelligence It affects the development process of China's digital TV. In summary, "integrated set-top box" is facing the elimination as a transitional product, and "smart set-top box" needs to be on the stage of history. The smart set-top box is a smart digital all-in-one machine while achieving its own development by breaking and discarding the backward and closed software technology system Development paves the way. The resulting pattern is that the integrated set-top box is eliminated, and the smart set-top box and the intelligent digital all-in-one machine coexist for a long time. Finally, the intelligent digital all-in-one machine replaces various set-top boxes and becomes the only living room terminal. Bitcoin mining machines are one way to obtain bitcoins. Bitcoin is an online virtual currency created by open-source peer-to-peer software. Instead of being issued by a specific currency institution, and produced by the massive computation of a specific algorithm, the Bitcoin economy uses a distributed database of nodes throughout the P2P network to identify and record all transactions. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin by producing a large number of coins.
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Bitcoin miners manage the Bitcoin network by solving the problem of proof-of-work mechanisms with a certain amount of work -- confirming transactions and preventing double payments. Because hashing is irreversible, finding the number of random adjustments required to match is difficult, requiring a trial-and-error process that can predict the total number of times. This is where the proof-of-work mechanism comes into play. When a node finds a solution that matches the requirement, it can broadcast its result to the whole network. Other nodes can then receive the newly solved data block and check whether it matches the rule. If the other nodes calculate the hash value and find that the requirement (the operation goal required by Bitcoin) is satisfied, then the data block is valid and the other nodes accept the data block.
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