Wi-Max=Worldwide Interoperability for Microwave Access
World Interoperability for microwave access
Wireless Interoporability for Microwave Access
Full form of wi fi
WIreless FIdelity
Wireless Fidelity
3D Studio Max
Maximum.
Sony Entertainment Television for max
wi-fi
wireless - fidelity wireless fideilty
Wi-Fi will be for a shorter range, whereas Wi-Max is for a larger range i.e. for a MAN (Metro Area Network).
The full form of mins and max is minimum and maximum respectively.