As such it is one of the simplest possible models of computation. Nevertheless, there is an elementary cellular automaton (rule 110, defined below) which is capable of universal computation.
In 2012, there were some 3,997 distinct Android devices. This year there are a whopping 11,868. Eight versions of Android are currently in use and 37.9 percent of users are running Jelly Bean, the latest version of the mobile OS. Samsung's apparent share of the market is 47.5 percent.
Android has evolved over time to support a wide variety of storage device types and features. All versions of Android support devices with traditional storage, which includes portable and emulated storage. Portable storage can be provided by physical media, like an SD card or USB, that is for temporary data transfer/ file storage.