Homework on EVM

Ethereum 101
#1966
  1. EVM reads smart contracts instruction for the CPU, so the CPU can execute them.
  2. Bytecode
  3. Smart contraccts are written in Solidity programme language and then compiled in Bytecode.
  4. Because Script can only execute simple instruction. It’s language is non turing complete.
  5. A turing complete programming language can execute all complex instruction that are possible.
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#1967
  1. What does the EVM do?

EVM runs on every node and separates the smart contract from the CPU.

  1. What is the format of the instructions that the EVM can read?

Byte code

  1. What is the relationship between the programming language Solidity and Bytecode?

Solidty is a programatic language used to code smart contract on Ethereum. When it is compile each instruction is represented by bytecode and then interpreted by the EVM

  1. Why can’t Bitcoin run the same type of complex programs like Ethereum can?

Because “Script”, the programming language of Bitcoin is not Turing Complete ie, is not capable of doing complex operations

  1. What is a Turing Complete programming language?

One that can program anything imaginable including code using loops that can not be written on bitcoin.

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#1968

2.What is the format of the instructions that the EVM can read?

Quite close sir, but Solidity is the programming language that you use to create/design smart contracts, after that, it will be compiled into ByteCode, so the format of the instructions that EVM reads is Bytecode.

If you have any more questions, please let us know so we can help you! :slight_smile:

Carlos Z.

#1969

  1. EVM allows you to execute programmable code (such as smart contracts) that can be deployed on the Ethereum network

  2. bytecode.

  3. The smart contract is written in solidity, wich is then compiled to bytecode in order the EVM can read the smart contract.

  4. because bitcoin in not turing complete it can’t solve all problems how we/Vitalik would like.

  5. turing complete programming language allows the use of loops, a task that is executed several times

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#1970
  1. The EVM run instructions of the smart contracts
    2.The instructions format is the bytecode
  2. The Programming language Solidy allows to create the bytecode via a compiler
  3. Bitcoins does not have a fully Turing complete programming language
  4. It allows you to programm anything you want.
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#1971

1 Ethereum Virtual Machine which is the encapsulated environment that can execute the programming of the smart contract and communicate that program to the CPU. This sandbox approach keeps malicious actors from manipulating the code to their advantage.

  1. Bytecode

  2. Solidity takes a more readable programming language like JS and compiles this code into bytecode so the EVM can read and execute the contracts through the EVM.

  3. Bitcoin uses script and is not Turing complete so the code is very rigid and makes it hard to be creative.

  4. Turing Complete language is more fluid meaning you can program whatever application you want on the network because it allows you to run loops.

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#1972
  1. EVM reads the smart contracts, does the calculations and then executes together with the CPU.
    All nodes on the Ethereum network has EVMs that has to reach consensus in order for any TXs to go
    through and they add a layer of security on the CPUs.
  2. Bytecode.
  3. The content of a smart contract is first written in Solidity, then it gets compiled into Bytecode which EVM READS and execute with cpu.
  4. It is not Turing Complete to avoid spam and scalability issues.
  5. A Turing Complete language can tell software to create loops, like repeat a task several times.
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#1973

Thank you Carlos Z. for the clarification. Well appreciated ! :blush:

#1974
  1. What does the EVM do?
    • Execute the smart contract code on the ethereum network nodes
  2. What is the format of the instructions that the EVM can read?
  • Programmed in Solidity or Viper
  1. What is the relationship between the programming language Solidity and Bytecode?
  • Solidity languaje makes easy for us to program and understand the instructions , as it is human friendly. A compiler translates this code to Bytecode which is readable by EVM
  1. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
    • Because bitcoin is designed only to manage transactions and limited instructions on a language calles script.
  2. What is a Turing Complete programming language?
    • Means that you can program anything you want
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#1975

1.What does the EVM do?

The EVM reads and executes smart contracts

  1. What is the format of the instructions that the EVM can read?

The EVM can only read a byte code

  1. What is the relationship between the programming language Solidity and Bytecode?

Solidity code gets compiled into a byte code so the EVM can read it.

  1. Why can’t Bitcoin run the same type of complex programs like Ethereum can?

Because the Bitcoin programming language is turing incomplete.

  1. What is a Turing Complete programming language?

A turing complete language means anything can be programmed.

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#1976

1/ what it does is that it is a de-centralized application that is capable of interacting with the cpu or nodes in a secure way, in an app with a barrier

2/ byte code

3/ that soldity is the way we can write whatever we want and then this language is translated into the language that the EVM accepts, which is byte code

4/ Because it is a not turing language, which means that it is not complete, therefore it is not so wide and not everything can be programmed

5/ It is a complete language that in practice leads to what we think we can program

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#1977

  1. EVM makes it possible that all computers are all on code and consensus and reading the smart contracts.

  2. The format of the instructions can be read in the byte code .

  3. Solidity is the programing language used for smart contracts on Ethereum. It is read using the byte code.

  4. BTC uses a more simpler version named SCRIPT.

5

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#1978
  1. it is the ethereum virtual machine and it is a program that is the bridge or interface between the Ethereum nodes and the smart contracts on the Ethereum network
  2. EVM can read byte code
  3. Solidity can turn sort-of-English-code into Bytecode, and then EVM can read the bytecode
  4. Bitcoin’s language is Script and it isn’t a Turing Complete language, meaning it cannot be used to program anything you want and doesn’t allow for Loops
  5. a Turing Complete programming language allows you to program anything you want and allows for Loops, or repetitions of instructions to occur with variations inside of them when desired
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#1979
  1. What does EVM do?

Ethereum Virtual Machine reads and executes the list of rules and instructions in the Smart Contract and tells the CPU what to do. The EVM is a powerful, sandboxed virtual stack embedded within each full Ethereum node, responsible for executing the contract bytecode. Every node in the Ethereum network runs an EVM instance, executing all the instructions in the smart contract and reaches to the same final results which allows all of the nodes to come to an agreement (consensus) on executing the outcome from the smart contract.

  1. What is the format of instructions that EVM can read?
    EVM can read instructions in the format of byte code.

  2. What is the relationship between the programming language Solidity and Bytecode?
    Solidity is a programming language similar to Java Script. After writing the smart contract, we will use a compiler to compile the logic and instructions of the smart contract into Bytecode format that is readable by EVM

  3. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
    Bitcoin can’t run the same type of complex programs like Ethereum can because the scripting language in Bitcoin is not turing complete.

  4. What is a Turing Complete programming language?
    A Turing complete programming language is a language that can program anything and has the loops function for a particular action to run several times.

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#1980

  1. What does the EVM do?
    The EVM makes it possible for us to execute code on the Ethereum network instead of a personal CPU.

  2. What is the format of the instructions that the EVM can read?
    The format of the instructions that the EVM can read is Bytecode.

  3. What is the relationship between the programming language Solidity and Bytecode?
    Solidity is the programming language used with the Ethereum network that compiles the terms into Bytecode.

  4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
    Because the Bitcoin language is not Turing Complete.

  5. What is a Turing Complete programming language?
    A Turing Complete programming language is a type of language that makes it possible to program anything you want.

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#1981
  1. It reads the instructions of the smart contract and tell the CPU what to do. It offers security to the network.
  2. EVM byte code.
  3. The instructions are program through Solidity, and a compiler takes Solidity code and transform it into bytecode.
  4. The programming language in Bitcoin is not turing complete for security reasons and to avoid the blocks getting full with loops.
  5. A programming language through which you can do anything.
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#1982
  1. The EVM uses the nodes hardware to execute smart contracts while maintaining a level of security.
  2. EVM can read byte code
  3. Solidity is the programming language that humans use to code smart contracts. It is then put through a compiler, and the compiler translates Solidity to byte code, so now it is readable by the EVM.
  4. Bitcoin cannot run the same type of complex programs like Ethereum can because the bitcoin language, Scrypt, is not turing complete.
  5. A turing complete programming language is able to all, complex problems.
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#1983
  1. What does the EVM do?
  • The EVM is an application that runs on top and uses the hardware of each node to execute byte data
  1. What is the format of the instructions that the EVM can read?
  • EVM byte data
  1. What is the relationship between the programming language Solidity and Bytecode?
  • Solidity is the programming language to write the smart contract and then a compiler takes the code and transforms it to byte code, which the EVM will use to execute instructions.
  1. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
  • It is not turing complete and cannot run loops. Bitcoin’s language is Script and it isn’t a Turing Complete language, meaning it cannot be used to program anything you want and doesn’t allow for Loops
  1. What is a Turing Complete programming language?
  • a turing complete programming language allows you to tell a software to do things multiple time. Therefore, if you do not have loops, you have to write all instructions by hand, and you cant always do that because sometimes a variable might change, and you need the loop to adapt
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#1984

  1. The EVM runs through the hardware of all nodes on the ethereum blockchain and it reads and executes smart contracts.

  2. The EVM reads byte code produced by solidity.

  3. Solidity helps to compact human readable code to byte code.

  4. Bitcoin utilizes a coding known as script which has limited uses for simple coding. Meanwhile ethereum has TC coding which can help it solve any problem, but does leave it self open to more security and scalability issues.

  5. A Turing complete language allows you to be able to solve any complex problems and can utilize loops to perform continuous actions.

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#1985

Homework: EVM

1. What does the EVM do?

This is the Ethereum Virtual Machine, which is an application that runs on all the nodes of the Ethereum network, reading smart contracts and executing them when consensus is reached between those nodes.

The EVM uses the resources of the computers that run the nodes (CPUs and GPUs), to process the transactions block via the Ethash proof of work mining algorithm.

2. What is the format of the instructions that the EVM can read?
Bytcode

3. What is the relationship between the programming language Solidity and Bytecode?

Solidity is an unlimited human-readable programming language, which developers use to write the logic of smart contracts, whereas bytecode is generated when a smart contract is compiled, and this is the version of the smart contract that is read and executed by the EVM.

4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?

Bitcoin is written in a different programming language, Script, which does not have the programmable features that Vitalik Buterin envisioned for Ethereum.

Bitcoin doesn’t make use of loops (which tell software to repeat an operation) – this capacity was excluded from Bitcoin’s hardcoding to avoid spam.

5. What is a Turing Complete programming language?

A Turing Complete programming language can solve all problems it could potentially be presented with. This is why Solidity (which is Turing Complete) is considered to be unlimited with regards to its programmability.

It can simulate the computational characteristics of any other programming languages – this makes it possible to create and run virtual environments, such as the EVM on the Ethereum Network.

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