Virtual Machine Execution

Definition ∞ Virtual Machine Execution refers to the process of running a program within a simulated computer environment. In blockchain, this involves smart contracts being processed by a virtual machine, such as the Ethereum Virtual Machine (EVM), which provides a secure and isolated environment. The VM ensures that contract code runs predictably and deterministically across all network nodes. This isolated execution prevents malicious code from affecting the underlying operating system and maintains network integrity.
Context ∞ Virtual Machine Execution is central to the functionality of smart contract platforms, enabling decentralized applications to operate securely. Discussions often concern the efficiency, security, and gas costs associated with different virtual machine architectures. Future developments aim to optimize virtual machine performance, enhance cross-chain compatibility, and support more complex computational tasks within blockchain environments.