IOTA is a cryptocurrency designed for the Internet of Things (IoT) ecosystem. It was created to support secure, scalable and fee-less transactions between IoT devices. The IOTA network uses a unique distributed ledger technology called Tangle, which is based on a directed acyclic graph (DAG) structure instead of a traditional blockchain. One of the key features of IOTA is its ability to enable machine-to-machine transactions, allowing devices to transact with each other in a secure and decentralised manner. This has the potential to revolutionise industries such as supply chain management, smart cities, and energy, where IoT devices can transact directly with each other without the need for intermediaries. IOTA's Tangle technology also enables fast and efficient transactions, as well as providing an infrastructure for new applications and services. In addition, IOTA aims to be highly scalable, with the potential to support billions of devices on its network.