A Point of Sale (POS) system is a combination of hardware and software that businesses use to process sales transactions with customers. It typically includes devices like cash registers, barcode scanners, receipt printers, and payment terminals, all managed by specialized software. POS systems track sales, manage inventory, process payments, and often integrate with other business tools such as accounting or customer management systems. Modern POS systems can be cloud-based and offer features like sales analytics, employee management, and support for various payment methods, making them essential for efficient retail and hospitality operations.