Google data centers in late 2013 and began selling off the barges in 2014. Most of the software stack that Google uses on their servers was developed in-house. According to a well-known Google employee, C++, Java, Python and (more recently) Go are favored over other programming languages. For example, the back end of Gmail is written in Java and the back end of Google Search is written in C++. Google has acknowledged that Python has played an important role from the beginning, and that it continues to do so as the system grows and evolves. The software that runs the Google infrastructure includes:
Online advertising in China They spend 1 billion hours online each day and the number will double to 2 billion by 2015. China's online shopping population is estimated to increase to 19% of the total population by 2012. The key players in China's search engine advertising are Tencent, Soso, Baidu, Sogou, Google, Bing and Yahoo! China. After Google decided to pull its search engine out of the Chinese market in early 2010, Tencent became the top choice for search engine advertising in China. Tencent's advertising platform is in Chinese. There are several companies that provide video advertising services in China. Advertising content is shown