The flow of control depicts the flow of events as represented in the flow chart. The events can flow in a sequence, or on branch based on a decision or even repeat some part for a finite number of times.
It has events occurring in a sequence one after the other without being dependent on any condition.
Here the flow of control gets branched based on whether a particular condition evaluates to true or false.
Here a sequence of steps is performed iteratively until some condition is met.