@ahazoor
bhai ya koi computer mnahi ka aisa hi nam da dia pentium 1,pentium2 ,,ya koi shmentium,,
the words 2 stroke represent a physical process that can be achieved in two cycle similarly if we differentiate between the two process more then it makes a four stroke,, ,, for this u need to learn how the energy in oil is used to rotate wheel,,try reading about internal combustion engine,
there is no three stroke engine as far now