How is the commission for ethereum smart contract transactions calculated?

Question

Cryptocurrency

Good afternoon, I'm trying to understand by what principle the cost of a smart contract transaction is calculated, and especially gas. And is there any point in smart contracts for an ordinary ordinary user?
For example, there is a simple casino or something like that, written in solidity, looking through the ethereum compiler, transactions are very expensive, which raises the question
Do I understand correctly the cost of transactions that are shown in https://ethereum.github.io/ browser-solidity/
After all, if the cost of transactions, say for hello world, is correct, then it is quite expensive, based on this, smart contracts are available only for banks and organizations

Answer 1

And is there any point in smart contracts for an ordinary ordinary user?

Of course, there is a sense in this, but at the moment there is still not enough good infrastructure. We at Jincor are trying to address this issue for the enterprise segment by making smart contracts, cryptocurrencies and blockchain in general easier to use and accessible to organizations that do not have blockchain technical expertise.
The cost of transactions is shown to you in some gas. And you determine the price of gas yourself. Based on the price, the speed of recording a transaction in a block will change.
I can't say that it's cheap now, but for me, even as a private person, it's not expensive either.
How is the transaction price calculated in gas? Everything is simple here: the code of smart contracts is executed in a decentralized Ethereum virtual machine. Each team costs a fixed amount of these same gas. We compile the contract -> we get exact instructions, each of which has its own price.