Google was founded in 1998 by Larry Page and Sergey Brin while they were Ph.D. students at Stanford University in California. Google started its adventure with mobile world from its own operating system - Android OS. It was powering first android device produced by HTC – HTC Dream. Device were having physical slide-out QWERTY keyboard. It’s first series of smartphone under its brand – Google Nexus were produced by Huawei, LG, HTC, Samsung and Motorola. Then it was exchanged by own Google production – Pixel. But in fact, it was produced by HTC. A part of HTC has been purchased by Google, together with its workers. Google produces high-quality and expensive devices, providing clean Android system together with first in line to get newest updates of this system. Google is known mostly from its Internet Search Engine – Google.com, but during years started to provide many other services like e-mail, maps, calendar, translation engine and many others becoming one of the biggest in the world IT company.