Blockchain is a decentralized, distributed ledger technology that allows for secure and transparent record-keeping of transactions and assets. Blockchain is used in many applications, such as cryptocurrencies, supply chain management, and voting systems. Popular blockchain platforms include Bitcoin, Ethereum, and Hyperledger. Go to site Quantum computing is a type of computing that uses quantum-mechanical phenomena, such as superposition and entanglement, to perform calculations. Quantum computing has the potential to solve complex problems that are beyond the capabilities of classical computing. Popular quantum computing platforms include IBM Quantum, Microsoft Quantum, and Google Quantum.