# Physical POS ### Overview iyzico Physical POS is a suite of solutions that enables merchants to accept card-present and contactless payments at their physical points of sale.\ This architecture is designed to be modular and extensible, allowing seamless integration with various POS manufacturers, cash register systems, and payment scenarios. *** ### **Physical POS Architecture** The iyzico Physical POS ecosystem consists of the following core components: **POS Devices** * Accept card and contactless payments * Handle user interaction **Cash Register Systems (ECR)** * Generate the sales amount * Initiate payments and track results **Communication Protocols** * Defined communication between the cash register and POS * Secure transmission of payment statuses *** **Integration Approaches** Physical POS integrations can be implemented using different methods depending on business needs: * Standard POS integrations * Vendor-based (POS manufacturer-specific) integrations * Custom communication protocols between cash register and POS One of the key components developed within this scope is the **Terminal API**. *** **Physical POS API Services** **Terminal API** * Communication protocol between Cash Register ↔ POS * Manages the payment lifecycle * Supports vendor-based (POS manufacturer) applications --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.iyzico.com/en/products/physical-pos.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.