Homework on EVM

[StintheKid]

1. What does the EVM do?
   The EVM is a code layer on top of the ethereum network that is located on everynode. It executes smart contracts as a network rather than a single CPU.

2. What is the format of the instructions that the EVM can read?
   The EVM only reads Bytecode. A smart contract might have x amount of ETH and it will pay out to a recipient if set conditions are met, and if not will be returned to sender. (Simplest I could put it)

3. What is the relationship between the programming language Solidity and Bytecode?
   Solidity is the coding language one would write their smart contract in. It is readable to some extent by humans. After it goes through a compressor(?) it is converted to bytecode which is a code that basically looks like gibberish but is a language only readble by the EVM. Kind of like being hashed.

4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
   Bitcoin can run simple tasks through its script like a multi sig wallet, but lacks the EVM layer so it it severely limited in comparison.

5. What is a Turing Complete programming language?
   A TC programming language can complete intense problems. One way to know if a language is TC is it having the ability to preform loops on its code.

[Simon_Martin]

1/ The EVM is an isolated program that can read, verify, and execute the smart contract on the network. It runs on top of, and interprets the byte code of the smart contract for the CPU.

2/ The EVM reads the byte code of the smart contact.

3/ Programmers use an application called a ‘compiler’ to read the instructions from Solidity and translate it into Byte Code.

4/ Bitcoin uses ‘Script’ as a programming language which has limited ability. It’s a non Turing-complete language meaning it’s not possible to be used for writing smart contract code. These Script limitations are considered of benefit however as they keep spamming out of the bitcoin blockchain which would affect its scalability

5/ A Turing Complete programming language is extremely flexible that (theoretically) allows anyone to write any type of computer function, like loops - repeating an action over and over. Most modern computer languages are Turin-complete.

[ehammer]

What does the EVM do?
Its the Ethereum Virtual Machine which is a sandboxed instance running on an ethereum node that executes the instructions of smart contracts and reaches consensus on the results with all the other running instances.

What is the format of the instructions that the EVM can read?
The instructions of the smart contracts is compiled into bytecode, which is read by the EVM.

What is the relationship between the programming language Solidity and Bytecode?
Solidity is the higher level programming language that programmers use and this gets compiled into sequences of instructions, which is called Bytecode, that the EVM can execute.

Why can’t Bitcoin run the same type of complex programs like Ethereum can?
Because it does not support a capable programming language needed to write smart contracts. Bitcoin Scripts can only do minimal instructions and iis not Turing Complete.

What is a Turing Complete programming language?
It is a language that can actively change the state of the system. If the language can emulate a Turing machine, which is a system of rules, states and transitions, then its called a Turing Complete.
Basically if the language supports loops with variables.

[marc.berchtold]

1. What does the EVM do?

The EVM is the runtime which executes the byte code in a sandbox on the ehtereum node.

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?

Solidity is the higher level programming language for Ethereum smart contracts. The code will be compiled into byte code.

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

Bitcoin supports only a minimum set of instructions -> it’s not turing complete

4. What is a Turing Complete programming language?

A Turing-complete programming language can solve any possible computational problem

[gillwise]

1. The EVM runs on each node and carries out instructions of the smart contracts.
2. A sandbox environment is where the EVM inteprets and executes smart contracts without allowing any direct access to the CPU’s and therefore reducing the likelihood of malicious code infecting nodes.
3. Solidity inteprets the smart contract programming written in Bytecode.
4. Bitcoin uses Script which is not Turing Complete meaning that it is limited in it’s application of instructions.
5. A Turing Complete program language is any program that contains Loops which enable software to carry out commands several times over, instead of writing instructions repeatedly into a program.

[mattv]

Homework: EVM

1. EVM is an application that sits on top of the CPUs in the network and reads and executes smart contracts, compiles them into byte code for the CPU and tells the CPU what to do
2. solidity
3. instructions written in solidity get compiled into byte code which is run on the CPU
4. it’s not turing complete and cannot handle loops
5. allows you to run complex operations and run loops

[SoloDragonGG]

1. What does the EVM do? Acts a decentralized supercomputer for nodes on ethereum network to develop and run smart contracts and applications on.

2. What is the format of the instructions that the EVM can read? Contracts live on the blockchain in an Ethereum-specific binary format (EVM bytecode). However, contracts are typically written in an
Ethereum high level language (Solidity), compiled into byte code using an EVM compiler.

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

When we compile the solidity code using the solc compiler, it will translate our code into bytecode, something only the EVM can understand. … These long values are hexadecimal representation of the final contract, also known as bytecode

4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
Because Bitcoin was optimized for security and anti-seizure, which makes it perfectly suited to serve as digital gold. however poorly suited to running a complex applications.

5 What is a Turing Complete programming language? In computability theory, a system of data-manipulation rules is said to be Turing-complete or computationally universal if it can be used to simulate any Turing machine.

[Tino]

1. What does the EVM do?
   Ensures nothing malicious happens such as the smart contract taking over the CPU and controlling the nodes’ data. EVM reads the smart contract and makes sure the CPU follows the contract’s instructions. This is the consensus mechanism for Ethereum.

2. What is the format of the instructions that the EVM can read?
   Bytecode format via Solidity programming language

3. What is the relationship between the programming language Solidity and Bytecode?
   Solidity firstly compiles the smart contracts instructions into bytecode. The EVM then reads the bytecode to execute the smart contract.

4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
   Bitcoin’s scripting language is not Turing Complete ie. It cannot solve all possible problems as it’s very limited.

5. What is a Turing Complete programming language?
   Both Solidity and Viper are Turing Complete programming languages. Turing Complete programming languages allows you to program anything you want regardless of complexity. A feature of such language is Loops, which allows the complexity to occur as it allows multiple variables and changes

[bianconeri_bear]

1. The EVM is a virtual machine that will execute each line of code one at a time.

2. The instructions a written in Solidity, they are then compiled into EVM Byte Code. The CPU then executes the instruction using the EVM.

3. Solidity is a high level language that is simple to learn as it uses English words. Bytecode is a low level language that Solidity code must be compiled into so that the the EVM and CPU can execute them.

4. Bitcoin is not turing complete meaning it has very limited programmability and cannot do everything you might want it to do e.g. no loops.

5. A turing complete programming language is programmable, in theory you could program your smart contract to do anything you want it to.

[SpiritOfThe9]

What does the EVM do?
Executes Smart Contracts.

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

What is the relationship between the programming language Solidity and Bytecode?
Solidity compiles into EVM Bytecode.

Why can’t Bitcoin run the same type of complex programs like Ethereum can?
Script is not Turing complete.

What is a Turing Complete programming language?
A language which has the ability to solve any computational problem. It is not limited to a subset of problems.

[Salvatore]

1. What does the EVM do?
   EVM is there for security as its reads the byte code of smart contract before the CPU and then its performs what it is listed in the smart contract.

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

3. What is the relationship between the programming language Solidity and Bytecode?
   The smart contract is written in solidity programming language that then is transferred into byte code and eventually read by the EVM.

4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
   Bitcoin programme language is script and it is not turning complete.

5. What is a Turing Complete programming language?
   A turing complete programming language is a highly programming language that can programme complex things.

[Ernesto]

1 the EVM is an application running in all nods and execute the smart contracts then give instruction to all CPU
2 Byte Codes
3 Solidity is the language that EVM understand or read
4 Bitcoin language is script and is not a Turing Complete
5 It is a language that can solve problems on computers systems.

[pmassafr]

1. EVM execute code written in the Solidity language
2. Solidity
3. Solidity language is translated into bytecode by the Solidity compiler, EVM executes bytecode
4. Because it’s not Turing Complete
5. It is theoretically capable of expressing all tasks accomplishable by computers

[ANV81]

1. What does the EVM do?
   It takes smart contract code into its container to be executed on the nodes across the ETH network.

2. What is the format of the instructions that the EVM can read?
   EMV reads Bytecode compiled from the Solidity or Viper languages.

3. What is the relationship between the programming language Solidity and Bytecode?
   Solidity allows for an English readable way to program a smart contract while its compiler can turn it into Bytecode which the EVM can read.

4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
   Because Bitcoin’s Script is not a turing complete language like Solidity.

5. What is a Turing Complete programming language?
   It’s a language that will allow to program almost anything from scratch, versus a non-turing language which is more limited in its scope.

[alcalvillo]

1. EVM is the middle man machine between the smart contract and the CPU. It reads and executes the code in the SC. It also protects the CPU from malicious code within the SC.
2. The format of the instructions is byte code
3. Solidity is the programming language that is used on the Ethereum network that uses compilers to compile the code into a readable English language of bytes. Bytes are the sets of instructions to be read by the EVM
4. BTC uses script instead of solidity and is not turing complete, meaning that it does not have, or is limited, the ability to solve problems for specific apps.
5. Turing complete is the ability to solve complex problems. For example, the Ethereum networks ability to run smart contracts with complex instructions.

[voconget]

1. What does the EVM do?

It executes Ethereum smart contract byte code on the network nodes.

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?

Solidity is higher level and is compiled into byte code.

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

It has a limited script language that is not turing complete.

5. What is a Turing Complete programming language?

It is a programming language that is theoretically able to perform any conceivable calculation.

[porter]

1. EVM is an intermediary between the smart contract code and the CPU. It tells the CPU what to do based on the smart contract

2. Solidity code

3. Solidity becomes before the Bytecode. It is put together into the Bytecode for the EVM to decipher

4. Bitcoin runs Script which does’t have Turing Complete programming language

5. Data manipulation based on a set of rules

[Fanon]

@filip

1. What does the EVM do?

The Ethereum Virtual Machine (EVM) does many things like process all transactions on the Ethereum network, execute smart contracts, and secures the CPU once a smart contract is deployed.

@filip

2. What is the format of the instructions that the EVM can read?
3. What is the relationship between the programming language Solidity and Bytecode?

Byte code is the format that the EVM can read. The instructions of smart contracts are written in Solidity, then a compiler–acting as a translator–makes the instructions understandable to the EVM by converting them into byte code.

@filip

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

Bitcoin isn’t Turing complete, nor do I think it was originally designed to be. Satoshi Nakamoto created Bitcoin with one objective: create a trustless, censorship-resistant, decentralized peer-to-peer digital currency.

@filip

5. What is a Turing Complete programming language?

A programming language is Turing complete if it can replicate any computer program or solve any problem. According to Binance Academy, Ethereum is Turing complete because it is “able to use its code base to perform virtually any task, as long as it has the correct instructions, enough time and processing power.”

[Zolee]

1. What does the EVM do?
   R: EVM is used on the Ethereum nodes and executes the smart contracts in bytecode.

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

3. What is the relationship between the programming language Solidity and Bytecode?
   R: Smart contracts are written in solidity which compiles the code into bytecode.

4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
   Bitcoin`s scripting language is not Turing Complete while Ethereum´s Solidity is.

5. What is a Turing Complete programming language?
   When a programming language can solve any computational problem we can call it Turing Complete.

[Tomek]

EVM reads(the instructions of the smart contract, also communicates it to cpu.

Byte code

With solidiy you can create whatever smart contract you want, bytecode is very limited. Solidity is Turing complete while bytecode is not.

Bitcoin is supposed to be digital money and has block size limits. It’s programming language is limited.

Turning complete language is the language that has unlimited potential. You can write any smart contract with it.