What is the difference between Seljuk Turk and Ottoman Turk?
In this regard, are the Turks and the Ottomans the same?
In short no. Turks are simply the members of Turkic tribes that migrated from Central Asia about a thousand years ago. Ottomans on the other hand are the continuation of a group within Sultanate of Rum, made up of some Turks as well as other ethnic groups like Greeks, etc.
Also question is, what is the difference between Turkish and Ottoman?
Turkic spoken outside the Ottoman Empire was “purer” but also less diverse in vocabulary. Ottoman Turkish was written primarily in Arabic or Persian scripts. Ottoman Turkish was flexible in that the words were written in many different scripts. Officially, though, it was in Arabic or Persian letters.
The Seljuk Turks Expand The Seljuks were pastoral and nomadic, with a strong warrior tradition. The Ghaznavids lost all of their realm in Iran and Central Asia to the Seljuks. They were weakened by family feuding and held on to power at Ghazni into the 1100s. The Seljuk empire, 1037-94, at its farthest extent.