X86 Virtual Machine enables Qtum developers to write smart contracts in a language of their choice.
The Qtum team has created an x86 virtual machine (VM) for executing smart contracts in a variety of programming languages. This VM operates very similarly to the existing Ethereum VM, with some notable enhancements:
In addition to supporting the existing gas model on Ethereum (where users pay for each operation they execute in a smart contract), Qtum has also added two new pricing models: fixed-fee per transaction and fee per transaction.
There are other crypto projects out there attempting to achieve the same goals as Qtum, however, it is worth noting that Bitcoin's UTXO (unspent transaction output) model is what makes the platform unique. Qtum is a platform trying to produce smart contracts and dApps (decentralized applications) that can be used in enterprise environments.
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