Android (operating system) million devices had been activated with 1.3 million activations per day. In May 2013, at Google I/O, Sundar Pichai announced that 900 million Android devices had been activated. Android market share varies by location. In July 2012, "mobile subscribers aged 13+" in the United States using Android were up to 52%, and rose to 90% in China. During the third quarter of 2012, Android's worldwide smartphone shipment market share was 75%, with 750 million devices activated in total. In April 2013 Android had 1.5 million activations per day. , 48 billion applications ("apps") have been installed from the Google Play
V (operating system) V (operating system) The V operating system (sometimes written V-System) is a discontinued microkernel operating system that was developed by faculty and students in the distributed systems group at Stanford University from 1981 to 1988, led by Professors David Cheriton and Keith A. Lantz. V was the successor to the Thoth and Verex operating systems that Cheriton had developed in the 1970s. Despite very similar names and close development dates, it is not related to the UNIX System V. The key concepts in V are "multithreading" and "synchronous message passing". The original V terminology uses "process" for what is now