Por

MMX instruction for logical or.

Unlike most MMX instructions, POR doesn't operate on packed data. Instead, it operates on bits. A MMX register or 64 bit memory location is combined with a MMX register using logical or.

Compare PAND, PANDN, PXOR

POR stands for "Pull Out Replacement" where special education kids leave the classroom for certain subjects that are taught in the resource center. Considered a step below ICS and a step above Self Contained. Provides a small, inclusive enviroment where the kiddies can get special attention.

Profit On Resale.

POR stated on a product in a wholesaler is the amount or profit a business owner can make by selling a product at its recommended retail price. Of course, a shopkeeper (for instance) can make more profit on an item (provided they can still sell it, of course) by charging a higher price, and it is for this reason that un-price-marked-packs are often more expensive.

POR can also be calculated for the catering industry, coming from the cost of all the comprising ingredients in a certain menu item. It often appears to be much higher than the POR of a retail product, however it does not account for the required labour and skill to turn raw ingredients into a sale-able meal.