VB blockchain

1. This is last year's news: some netizens calculated a sum of money, and converted the computing power of tianhe-2 into mining efficiency. About two to three bitcoins can be g out in an hour, which is 15000 yuan

2. It can dig up 360000 yuan a day. Mayor Chen Jianhua said that tianhe-2's daily electricity bill is 300000 yuan, which seems to make a little money. However, if labor costs, depreciation of machinery and other costs are taken into account, "mining" will not make much money

3. This is the data provided by a press release at the end of November 2013. Of course, according to the current computing power, we can't dig so many bitcoins, and the revenue will be lower. Even tianhe-2 mining is a loss

4. After all, bitcoin mining is a very professional business. It needs a professional bitcoin miner. And the update speed of bitcoin miner is amazing

5. Taking Avalon mining machine as an example, it has been upgraded to three generations of chips, and the fourth generation will come out soon

1. java

   java is still the most popular programming language. Java has been at the top of the list more often than other languages for decades, according to tiobe. Many well-known companies use java to develop software and applications, so if you happen to use Java, you don't have to worry about finding a job. Java is popular mainly because of its portability, scalability and huge user community

2. classic C language

   as one of the oldest programming languages, C still tops the list, thanks to its portability and the adoption of it by technology giants such as Microsoft, Oracle and apple. It is compatible with almost all systems and is suitable for operating systems and embedded systems. Because the runtime environment is relatively small, C is the perfect choice to keep the system compact. It is strongly recommended for beginners to learn C, which is actually the general language of programming language, and has spawned the equally popular derivative languages, such as C + + and C #

3. C + + continues to dominate

   this object-oriented programming language was developed in the 1980s and is still used in many systems, from desktop web applications to server infrastructure. C + + is still very popular because of its flexibility, high performance and being used in many environments. Work in C + + usually needs to develop desktop applications for performance intensive tasks. Mastering C + + can help us to have a deeper understanding of programming language and acquire the skills of low-level memory processing

4. Python: rising

   in the past 15 years, Python's popularity has steadily increased. In the past few years, it has been able to rank in the top five of the tiobe index. As the main language behind some of the most promising technologies such as artificial intelligence, machine learning, big data and robotics, python has accumulated a huge fan base in recent years. You'll be surprised how easy it is to learn python, which is why many experienced developers choose Python as a second or third language

5. C #: the favorite of game developers

   C #, a modern object-oriented programming language, was developed by Microsoft to compete with Java, which was widely used by commercial software developers at that time. It is specially designed for developing applications on Microsoft platform and needs. Net framework on windows to work. As in the previous year, C # remained in a stable position, with no significant change in its ranking. You can use C to develop almost all applications, but it is especially good at developing Windows desktop applications and games

6. Visual Basic. Net

   Visual Basic. Net remained sixth in the index as it did last year. It is one of the OOP languages of Microsoft. It combines the powerful functions of classes based on. Net framework and runtime environment. Derived from VB6, it is good at developing GUI applications, simplifying tasks for programmers and improving proctivity. For programmers, in addition to web services and web development, vb.net also provides a fast and simple way to develop desktop applications for Windows platform

7. PHP for web development

   according to tiobe, PHP is the seventh most popular programming language in tiobe, replacing JavaScript as a more popular scripting language. PHP is mainly used in the server for web development, accounting for about 80% of the total number of websites. Facebook first used PHP, and PHP's role in WordPress's content management system made it very popular. PHP provides several frameworks, such as laravel and Drupal, to help developers build applications faster, with higher scalability and reliability. So if you're looking for a web development position, PHP is a good choice

8. JavaScript is indispensable

   this year, the usage of JavaScript has declined, and the ranking has declined compared with last year. But now all software developers use JavaScript in some way. Together with HTML and CSS, JavaScript is essential for front-end web development to create interactive web pages and dynamically display content to users. More than 90% of websites use this language, and it is also one of the most friendly programming languages for beginners. So if you master JavaScript, there's no shortage of opportunities. However, you need to learn other supporting languages and frameworks to become a professional front-end developer specializing in desktop and mobile application or game development

9. sql

   sql won the ninth place, achieving significant growth. After all, it failed to rank in the top 20 programming languages in the tiobe index last year. Despite other database technologies, the standard query language used to manage databases has been dominant for the past four decades. The reason is that it is simple, reliable, ubiquitous, and has an active community that helps keep this open source language alive. Compared with other languages, beginners are usually easier to learn SQL; As far as career development is concerned, high paid positions like data analyst require SQL to be understood

10. programmers like R

    in recent years, the demand for R programming language and the number of people using it are increasing rapidly. From the tiobe ranking, it is obvious that R has risen four places: from 14th to 10th. For data scientists, R is the first choice of statistics, graphical representation and data visualization analysis. It has become a big data tool for machine learning and scientific computing. The scope and Prospect of R programming language is very promising. For those who are interested in data science, it is definitely a stable and prosperous career choice