IOTA is a distributed ledger technology (DLT) that allows devices in an IOTA network to transact in micropayments and to send each other immutable data.
The client libraries abstract the complexity of the IOTA protocol into simple methods for sending messages and payments, authenticating messages, and more.
To join an IOTA network and to start validating and storing transactions, you need to download and install one of the available types of node software.
IOTA networks consist of interconnected nodes that have read/write access to the Tangle. You can connect to these nodes to send transactions to them and get transactions from them.
Wallets are applications that store your seed and keep a record of transactions in a database. You can use wallets to simplify the process of securing your seed, sending transactions, and managing your balance.
IOTA allows devices on the Internet of Things to use the Tangle as a single source of truth, where they can buy, sell, or simply send data among each other for zero fees.