The Serbian Orthodox Church has a large number of churches and monasteries that were Serbian universities: Hilandar, The Patriarchate of Peć, Dečani, Studenica, Žiča, Gračanica, Sopoćani, Virgo, Milečeva, Ravanica, Ljubostinja, Ćelije, Tronoša, Ostrog, Cetinje Monastery, Vujan, Hopovo , Krušedol, Vraćevšnica, Manasija, Djurdjevi Stupovi, Lepavina, Krka, Krupa, Dragović, Banjska, Piva, Savina, Soko, Gornjak, Vitovnica, Radovašnica, Tavna, Moštanica, Dobrun and others.
Serbian churches and Serbian universities gave the highest level of literary and artistic education. Literacy and artistic treatment of Serbian manuscripts and government documents have been created for thousands of years.
When we compare the protocol used in computer data processing and protocol at Serbian calendar we see that the protocols are the same. In both protocols, first has been written the year, then the month and at the end the day. Thus we come to the magnificent scientific knowledge that modern computer data processing is performed under the protocol of the Serbian calendar.