Cosmos (ATOM) is an ecosystem of interconnected blockchains designed to overcome scalability and interoperability issues between different blockchains. Cosmos uses the Proof-of-Stake (PoS) consensus algorithm and is designed to provide high performance and fast transactions. The core component of Cosmos is the Inter-Blockchain Communication (IBC) protocol, which allows blockchains to communicate with each other and transfer data and assets without the need for intermediaries. ATOM, the Cosmos network's native cryptocurrency, is used to secure the network, pay transaction fees, and participate in ecosystem governance through voting.