Point of Sale (POS) is a system where customers execute payments for goods or services. Coursera's POS skill catalogue teaches you about the technology and processes that facilitate these transactions. You'll learn everything from the basics of POS systems, understanding various hardware and software components, to advanced topics like integrating POS systems with inventory management and customer relationship management (CRM) systems. You'll also gain insights into data security standards for POS systems, and how to troubleshoot common issues. This knowledge will equip you to effectively manage POS systems in retail, hospitality, and other customer-centric industries.