Nokia OS

Nokia OS is OS created by Andrey Nikolaev. Released first version in 1987.
== Versions ==
* Nokia OS 1987
* Nokia OS 1992
* Nokia OS 1997
* Nokia OS 2001
* Nokia OS 2004
* Nokia OS 2008
* Nokia OS 2011
* Nokia OS 2013
* Nokia OS 2015
* Nokia OS 2017
* Nokia OS 2018
* Nokia OS 2020
Category:Fictional OS