So what is a Golf Simulator?
A golf simulator allows golf to be played on a graphically or photographically simulated driving range or golf course, usually in an indoor setting. It is a technical system used by some golfers to continue their sport regardless of weather and time of day in a converted premises.
The principal advantage of a golf simulator is the ability to conveniently play and practice in a controlled environment. Often this means the ability to play without any pressure, green fees, or tee times
A key attribute of any simulator is accuracy. Ball flight is the primary determinant of a system's accuracy. Speed of the calculations and a predictable projected image of the ball in flight is one measurement of a system's accuracy. Predictability or the plausibility of prediction is a measure according to known ball flight properties among golf experts.