Short for Point of Interest. Points on the map (GPS coordinates with descriptions) that you are interested in and want to store. Mobile users can also be provided with recommendations of relevant to POI places, based on geolocation data.
A web-based Microsoft's document management and collaboration tool, the system that can tie a lot of PCs and mobile devices together, can be used for coordination by companies with a hundred employees.
Stands for Point of Sale. A computerized terminal that is a replacement for a cash register. It has the ability to record and track customer orders, process credit and debit cards, connect to other systems in a network. POS can be physical (in stores, hotels, etc.) and online.