Besides three popular operating systems we already know: Android, iOS, and Windows Mobile, there are still others that you may not know. Here we have a list of 10 OSes, including the three and…

1. Symbian

Let’s meet Symbian, an excellently designed and user-friendly OS. It officially belongs to Nokia, so if there is a company which wants to use this OS, they has to ask Nokia for permission first. In fact, it is mostly known to be used in low-end handsets and unfortunately, the demand rate has even been decreasing. At the moment, Symbian mobile OS has been upgraded and capable to run smartphones efficiently. Two latest updates are Symbian ANNA and BELLE for those who are using a Nokia phone (e.g. Nokia C6-01, Nokia 603, Nokia 700, Nokia 808 Pure View, Nokia E6 (ANNA) and Nokia 701 (BELLE)).

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