What language did the early Turks used?

Question

In the time of, say for example, Mehmed II?
Was Arabic used other than in religious stuff and for witting?

How did they communicate with other Islamic factions? what language, etc..

Oh and there were turks in anatolia and turks in the Levant and the arabian peninsula, what language did they use?

Answer 1

Persian language ...

Answer 2

There is a language family known as Turkik...
Turks spoke a Persian language way back when. See:
The Iranian Branch
These languages are descended from Ancient Persian, the literary language of the Persian Empire and one of the great classical languages.
The main language of this branch is Farsi (also called Iranian, Dari and Persian), the main language of Iran and much of Afghanistan. Kurdish is a close relation. Kurdish is spoken in Turkey, Syria, Iran and Iraq by the Kurds. It is the second largest of the Iranian languages after Farsi. In Turkey it was banned until recently.
from http://www.krysstal.com/langfams_indoeuro.html
From wikipedia, http://en.wikipedia.org/wiki/Turkish_people
comes this:
The Turkish language is a member of the ancient Oghuz and Kipchak subdivision of Turkic languages, which in turn is a branch of the proposed Altaic language family.[45][46][47] Turkish is for the most part, mutually intelligible with other Oghuz languages like Azeri, Crimean Tatar, Gagauz, Turkmen and Urum, and to a lesser extent with other Turkic languages.
After checking several sites, the answer is, lots of various languages, depending upon who conquered whom at the time.
So many Turks live outside of Turkey; but as long as they speak a Turkik language, they are Turks (meaning "strong").
I was interested also, as some of my ancestors came from Turkey.