What is the difference between Windows Embedded POSReady and Windows Embedded CE or Windows XP Embedded?
Windows Embedded POSReady is optimized with just the features and components required for full-function POS devices in retail and hospitality organizations. This product is an installable operating system much like Windows XP, whereas Windows XP Embedded and Windows Embedded CE are toolkits for creating a custom operating system on a developers machine prior to deploying to the target systems. See a product comparison here.