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:
History of YouTube According to the website Hitwise.com, YouTube commanded up to 64% of the UK online video market. YouTube entered into a marketing and advertising partnership with NBC in June 2006. On October 9, 2006, it was announced that the company would be purchased by Google for US$1.65 billion in stock, which was completed on November 13. At that time it was Google's second-largest acquisition. The agreement between Google and YouTube came after YouTube presented three agreements with media companies in an attempt to avoid copyright-infringement lawsuits. YouTube planned to continue operating independently, with its co-founders and 68 employees working within Google.