What is the concept of gas limit in Ethereum transactions?

The gas limit in Ethereum transactions refers to the maximum amount of computational work (measured in gas units) that a user is willing to pay for executing a transaction or smart contract. Gas is a unit used to measure the amount of computational effort required to process a transaction on the Ethereum network. The gas limit determines the maximum amount of gas that can be consumed by a transaction. If the gas limit is too low, the transaction may fail to execute. Users must also set a gas price, which is the amount they are willing to pay per unit of gas. A higher gas price can expedite the transaction, while a lower price may result in slower processing.