Homework on EVM

Ethereum 101
#2067

  1. What does the EVM do?
    The EVM or Ethereum Virtual Machine, reads the smart contract then communicates it to the CPU, rather than the CPU reading the smart contract directly. It is a safety mechanism so malicious programs can not take over a computer, which could happen if the CPU is interacting directly with the smart contract.

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

  3. What is the relationship between the programming language Solidity and Bytecode?
    The programmer uses the programming language, in this case Solidity to write the smart contract.
    Then Solidity complies the smart contract information to bytecode for the EVM to be able to read.

  4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
    The bitcoin language is script which is not turing complete so it is limited in what it can do. It can not do loops. Whereas the ethereum language is Solidity which is turing complete so it can be programmed to do anything the developer needs it to do.

  5. What is a Turing Complete programming language?
    A programming language that can do anything the programmer wants it to do. It allows for loops.

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#2068

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

Quite close sir(s), but the format of the instructions that EVM read is ByteCode. What you are mention is one of the EVM features.

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

Carlos Z.

#2069

1. EVM reads the Smart Contract, take a look at the instructions, command the CPU to execute instructions in order to reach consensus in the network.

2. The format of the instructions that EVM reads is Bytecode.

3. The relationship between the programming language Solidity and Bytecode is: Solidity code is compiled to turn into a Bytecode.

4. Bitcoin can’t run the same type of complex program as Ethereum because it’s not turning complete.

5. Turing complete programming langauge solve problems and allows programmers to write anything they want. :100:

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#2070

  1. The EVM application is reading and executing the code in the smart contracts, and then tells the CPU what to do with it. Every node in the network runs this application and verifies the execution of a smart contract and this is how consensus is reached in the network. It also increase security as the CPU is not directly engaged in the smart contract, but indirectly through the EVM that makes sure that there are no malicious coding in the smart contract.

  2. EVM is reading Byte code.

  3. Solidity is a programming language that compiles your written code to Byte code, that the EVM then can read and execute.

  4. Because the programming language that Bitcoin is using (Script) is not Turing complete. It is a very limited programming language.

  5. A turing complete programming language is unlimited to what you can program. A turing complete language have Loops, witch means that you can tell a software to do one thing several times.

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#2071
  1. EVM is a blockchain-based software platform, it allows developers to create decentralized applications.
  2. Solidity.
  3. Solidity creates Bytecode and sends to the EVM.
  4. Bitcoin is simple scrypt.
  5. By being Turing Complete, it has the capability to understand and implement any future agreement.
#2072

  1. EVM is a virtual machine that runs on each node in the network. It reads smart contracts and executes them on the blockchain.

  2. EVM can read instructions in bytecode.

  3. Solidity is a programming language designed to be user friendly. Once to code is written in Solidity, it is compiled to bytecode.

  4. Bitcoin can’t run the same type of complex programs like Ethereum because Bitcoin’s Script programming language is not Turing complete, meaning it is unable to run loops. This is an intended characteristic in Bitcoin’s code.

  5. A Turing Complete programming language is a language the is able to execute loops.

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#2073

1: EVM is the software used by nodes on the Ethereum network to read and execute smart contracts.it also “encapsules” smart contracts, so they don’t have direct access to the CPU of the node.

2:EVMÂŽs read smart contracts which are written in byte code.

3:Solidity is a programming language.it’s a “translator” from human language into byte code.EVM®s can only read and execute byte code instructions

4:BTC is written in script which only allows very basic programming. The BTC blockchain, which is blockchain 1.0, would also have scaling problems since it’s meant for financial transactions only.

5(4.2):a Turing complete programming language would be solidity or viper.

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#2074
  1. What does the EVM do?

It stands for Etheruem Virtual machine, it is an application running on all the nodes of the ETH blockchain. It is the EVM that reads the smart contract not the CPU of each node.

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

The EVM reads Byte code.

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

Smart contract can be written using the solidity coding language then a compiler translate this language into Byte code which is then read and executed y the EVM

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

Script, the Bitcoin’s programming language, is not turing complete ( can’t run loops for instance)

  1. What is a Turing Complete programming language?

It is a a programming language which allows you to run loops so the same script could be run a multiple number of times with different parameters so smart contracts could be very elaborate.

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#2075

1. What does the EVM do?
ï»żEVM is a piece of code that can read and execute smart contracts.

2. What is the format of the instructions that the EVM can read?
ï»żEVM byte code
ï»ż
3. What is the relationship between the programming language Solidity and Bytecode?
ï»żSolidity is a programming language similar to javascript. It creates the smart contract code and converts it to bytecode to be used by the EVM
ï»ż
4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
ï»żIt uses Bitcoin script which is a coding language with limited capability
ï»ż
5. What is a Turing Complete programming language?
ï»żA Turing Complete language is capable of advanced programming such as using loops

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#2076
  1. EVM is the virtual machine executed on the Ethereum network.
  2. It is Bytecode
  3. Smart contracts are written in Solidity (syntax) they are compiled to bytecode which is loaded and executed by EVM
  4. Script language in Bitcoin can’t run the same type of complex programs which can be run in Ethereum because is not Turing Complete. It can’t solve all problems, it’s limited.
  5. Turing Complete programming language is language in which we can program anything we want.
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#2077
  1. What does the EVM do?
    Secures, that no bad code will run on the excecuting machine.
  2. What is the format of the instructions that the EVM can read?
    byte code
  3. What is the relationship between the programming language Solidity and Bytecode?
    Bytecode is just the compiled version of Solidity. EVM executes Bytecode.
  4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
    It has no Turning Complete programming language
 Just simple Script.
  5. What is a Turing Complete programming language?
    You can code anything you can think of.
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#2078
  1. What does the EVM do
    Evm can read and execute smart contracts ETEREUM VIRTUAL MACHINE
  2. What is the format of the instructions that the EVM can read?
    EVM can read Solidity languages -smart contracts
  3. What is the relationship between the programming language Solidity and Bytecode?
    programing smart contacts
  4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
    No
  5. What is a Turing Complete programming language?
#2079

  1. What does the EVM do?
    Ethereum virtual maschine works as an application between a program (smart contract) and the CPU. It reads and executes the code in such a way to have consensus in the network

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

  3. What is the relationship between the programming language Solidity and Bytecode?
    The language or code of Solidity is compiled into the Bytecode. In this way the EVM can read or execute the given code

  4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
    As Bitcoin is not designed for complex contracts (must be kept simple to be used as store of value). The script of Bitcoin is very limited and not turing complete. Anyway Bitcoin can run very simple contracts as multi signatures.

  5. What is a Turing Complete programming language?
    It is a language which can have loops (like Solidity). This is a feature where a programmer can tell to a software to do things several times. This is a very important feature.

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#2080

  1. The EVM is an over seer. The EVM makes sure the program code is behaving it self and not doing things that are malicious or detrimental to the network. The program (smart contract) runs under the envelope or control of the EVM.

  2. EVM reads Bytecode (in the old days we called it machine code) ones and zeros.

  3. solidity is the source code written before it is run through a compiler (translator) that converts the source code to Bytecode (machine language).

  4. Bitcoin uses Script, which is simpler and more primitive language than Solidity. Script is not a turing language so basically it is not designed to do super complex decision making. This being said, Solidity which is more robust (turing) also requires more overhead in the terms of processing power and data space. This was beyond the desired project scope of Bitcoin. So Bitcoin’s decision was to keep it simplified, so transaction speed would remain high and transaction cost lower. Bitcoins objective was to be a digital currency and speed and efficiency was chosen over complexity.

  5. Turing language can be written to handle any condition that can be thought of. Non Turing languages can do simple checks (like multiple signature) but complex condition sets can be determined by a Turing language. some people consider the fact that Turing languages use the “Loop” functions to continuously look for conditions as a feature that seems to set the Turing language above non Turing. Turing

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#2081
  1. Runs the smart contracts accross ethereum network,
  2. Byte code compiled from solidity or viper.
  3. Solidity is the programming language which is later compiled into byte code.
  4. Script language is not Turing complete
  5. A language that allows loops.
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#2082
  1. The EVM is a distributed computer that reads and executes the code in smart contracts.
  2. The EVM can read bytecode.
  3. The smart contracts are written in solidity which is then converted into Bytecode which can be read by the EVM
  4. Bitcoin uses the programming language script which is less functional than solidity. Also smart contracts would take up to much block space which is already limited on bitcoin
  5. Turing Complete language has the ability to program loops.
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#2083

1. What does the EVM do?
Ethereum Virtual Machine protects the host CPU from malicious attack, it essentially encapsulates the Smart Contract and completes the list of tasks and tells the CPU what to do.

2. What is the format of the instructions that the EVM can read?
The instructions / calculations are programmed using Solidity, in the smart contract that is then encapsulated by the EVM whilst following the instruction and telling the CPU what to do

3. What is the relationship between the programming language Solidity and Bytecode?
The smart contract is written in the code Solidity, the Solidity compiler creates the Bytecode

4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
The script language is very limited and not turing code due to being a simple language that is unable to solve some issues it might face.

5. What is a Turing Complete programming language?
A language that can solve all the issues and calculations that it can produce, by using if, then, else, and, or statements for example.

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#2084

What does the EVM do?

EVM reads and executes smart contract code

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

EVM reads “byte code” compiled on solidity

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

Solidity is a programming language, then put into a compiler to be transformed into “byte code”, which are used to create smart contracts

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

Bitcoin uses “script” a non-turing complete program that has limited capabilities.

What is a Turing Complete programming language?

Aturing complete language has the capability of using loops, rather than having to rewrite manually the same code over and over to get the exact same result.

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#2085
  1. What does the EVM do?
    It is a security measure insuring the right use of contracts without the violation of the purpose of the ethereum network.
  2. What is the format of the instructions that the EVM can read?
    The EVM uses Byte code to read the contract however it is written in the program Solidity and perhaps in the future a programing language known as Viper to format the instructions on the network. It goes between the contract and the CPU giving instructions to the CPU once it has read and gains the contracts instructions.
  3. What is the relationship between the programming language Solidity and Bytecode?
    Solidity is the programming language that writes the bytecode of the contract. The bytecode is what the EVM reads to further transfer instructions to the CPU
  4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
    It is not Turing Complete
  5. What is a Turing Complete programming language?
    Turing Complete programming languages are those that allow you to program anything you want to program. They are not limited as bitcoins Script language is which is not Turing complete.
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#2086

  1. What does the EVM do?
    Ethereum Virtual Machine is a program that runs on all nodes on the Ethereum network that reads smart contracts and executes their commands.

  2. What is the format of the instructions that the EVM can read?
    Though smart contracts are written in programming language by developers (most likely in Solitidy at present) that code then goes through a compiler next to “translate” it into Byte Code, which is the format that EVM reads.

  3. What is the relationship between the programming language Solidity and Bytecode? Solidity is the programming language used to write the code in a smart contract, where as Byte Code is the code that the EVM reads when reading the contract and relaying instructions to the CPU. The Solidity code is run through a Compiler and turned into Byte Code.

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

Because it can’t utilize more complicated code, it has a very primitive coding language called Scripts, which is not Turing complete. Ethereum on the other hand, which mainly uses Solidity, is a much more dynamic and programmable language that allows much more complicated programs to be written, and is entirely programmable (Turing Complete). It uses a feature of this programming language called Loops which allow the programmer to tell the software to preform a specific function several times.

  1. What is a Turing Complete programming language?**
    As stated above, the language that BTC uses (scripts) for instance is primitive, thus considered NOT Turing complete, but in the case of Solidity it is theoretically possible for programmers to program an app to do anything they want.
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