Thanks PaulS for the reply. Let me explain the project in a bit more detailed way. I am tracking the position of sun at a particular place over the entire day. The position is tracked by a 'frame-like-structure' which is controlled by stepper motors. Now, the position of the stepper motors at different instants of time is calculated via an algorithm which is developed and compiled in C language (run in Visual Studio Command prompt). The results obtained from this C program must be transmitted serially to the Arduino platform; so that the stepper motor can move according to the order of the C program. And so I am interested to find a mechanism that the results obtained from Visual Studio command prompt should be directly transmitted to the Arduino without any human intervantion.
Thanks CrossRoads for the explaination and sharing the pseudo codes.