A Virtual Machine (VM) is a software-based environment that emulates a physical computer, allowing programs to run on it as if they were on an actual machine. In the context of blockchain, a VM executes smart contracts and processes transactions. One of the most well-known examples is the Ethereum Virtual Machine (EVM). The EVM allows developers to create decentralized applications (dApps) by writing smart contracts in programming languages like Solidity. When these contracts are deployed, the EVM ensures that they execute correctly across the network.The use of a VM enables a consistent and secure execution environment, ensuring that the code behaves the same regardless of the underlying hardware. This consistency is crucial for maintaining trust among users, as all nodes in the network can independently verify the results of the executed contracts.Additionally, VMs facilitate computational scalability. When many users interact with a blockchain, the VM handles the logic behind those interactions, streamlining processes and reducing the risk of errors. This capability enhances the functionality and versatility of blockchain systems, driving innovation and collaboration.