The initials IPSC stand for Information Processing Standards for Computers. This is the most common thing that it stands for. It can also stand for International Practical Shooting Confederation, however this is a less common use for the initials IPSC.
The initials INPS can stand for several different phrases. One phrase that INPS can stand for is International Network for Philippine Studies. Another phrase that INPS can stand for is Idaho Native Plant Society.