He world of processors, although it is often oversimplified, it is a world of everything complicated even to understand in terms of specifications of these.
We are already used, computer users, to read about 32bits and 64bits. In the processors that are mounted on smartphones and tablets, however, they only exist 32bit processors (at least, for now). Within these 32-bit processors, the vast majority are from ARM architecture, there are several families of processors.
In this world of portable devices, we are also accustomed to reading about a specific family, the «Cortex» family. This family of processors includes, for example, the processors Samsung exynos, the Qualcomm Snapdragon and a very long etcetera which includes most of the processors that incorporate Android devices. In addition to in Android, on iOS and Windows 8 RT, the processors that give life to the operating system are also ARM architecture.
ARM is not new or exclusive to Qualcomm
ARM is an architecture or processor design that was born in 1983 although he did not see his first model until 1985. The processors with this architecture they triumphed for their "simplicity" combined with a minimum energy consumption. We are talking about 1985 and we are currently in 2013. Nothing more has happened and nothing less than 27 years of ARM processors and in those moments Android did not appear even in the best dreams of developers, not yet.
Since Android was born in 2007, companies such as, above all, Qualcomm, have been gaining name and prestige in this from processors. But although many do not know, the architecture of Qualcomm processors integrated in smartphones and tablets with Android operating system, is also used by Many other hardware manufacturers.
What architecture did we think Samsung Exynos had? Also ARM. Every manufacturer «touch up» on the basis of this architecture but, after all, they all start from the same.