Blockchain technology is a distributed ledger technology that enables secure and transparent record-keeping without the need for a central authority. Blockchain is used in many applications, such as cryptocurrency, supply chain management, and voting systems. Popular blockchain platforms include Bitcoin, Ethereum, and Hyperledger Fabric. Sign up Cloud computing is a model for delivering computing services over the internet. Cloud computing provides on-demand access to a shared pool of computing resources, such as servers, storage, and applications. Cloud computing is used in many applications, such as web hosting, data backup, and software development. Popular cloud computing providers include Amazon Web Services, Microsoft Azure, and Google Cloud Platform.