Homework on EVM

[Mihir23]

1. The EVM (Ethereum Virtual Machine) is a runtime compiler used for compiling and deploying Ethereum-based smart contracts. Each node in the blockchain network runs the EVM to processes smart contracts.
2. The EVM can only read instructions that are compiled into Bytecode. Bytecode is derived from the programming language called Solidity in which smart contracts are programmed.
3. Solidity is an object-oriented, high-level programming language coded for creating instructions for a smart contract. Bytecode is a compiled code that is represented in hexadecimal and can only be processed by the EVM.
4. Because Bitcoin’s code is based on Script, a simple, stack-based programming language. Script was purposely designed for the processing of transactions on the Bitcoin blockchain protocol.
5. A Turing Complete programming language is limitless that can perform any computation multiple times - called looping. Loops are an important feature of programming because they allow the execution of code as many times.

[Doppe]

1. It provides a virtual machine area on each etherium connected node that is used to process bytecode. Each EVM is in consensus with each other.
2. The EVM’s use Bytecode for instruction format.
3. Solidity is the higher level human readable programming language that is compiled to generate the machine readable bytecode that operates at the EVM level.
4. Bitcoin doesn’t have the same functional capacity to run programs like Etherium. It is designed to have to this limited capacity to reduce bitcoin blockchain bloat.
5. A programming language that has higher order functionality such is conditional branching and can provide all programming functionality typically required.

[danny13]

1. A EVM reads and executes smart contracts on the etherium network it is there as a safety precaution to stop people taking over your computer.

2. The EVM can read bytecode.

3. The commands are written in solidity then compiled into bytecode so the EVM can read it.

4. Bitcoin runs on script which is not Turing complete.

5. A Turing complete programming language means anything mathematically possible is allowed.

[Reach.Higher]

1. EVM is Ethereum machine that runs on the Ethereum network using solidity to read a smart contract while encapsulating it from each CPU on each node.

2. EVM reads the instructions in solidity with a compiler.

3. Solidity uses a compiler to read the byte code to be executed on the EVM.

4. Bitcoin cannot run the same programs as Ethereum because Bitcoin uses Script as it’s language which is not turning complete.

5. A Turing Complete programming language gives you a feature called Loops, Loops have the capability that allows you to tell the software to do t1 thing several times and this opens up possibilities.

[dbtex35]

1. What does the EVM do?
   EVM executes compiled Solidity code
   EVM ensures that malicious programming is not possible by encapsulating the execution and not allowing direct execution from the CPU

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 complies code into ByteCode
   EVM executes ByteCode

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

5. What is a Turing Complete programming language?
   Turing Complete language has the ability to run loops

[alanmichael]

1. What does the EVM do?

-Makes smart contracts decentralized and allows consensus in the Ethereum blockchain. The EVM reads the instructions of the smart contract and does calculations. Then it tells the CPU what to do.

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?

-Solidity uses a compiler to convert your instructions into bytecode and then the EVM will read the instructions.

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

-Not turing complete, Also the blockchain size would have to increase tremendously. The BTC network could get spammed due to looping,

5. What is a Turing Complete programming language?

• A language that can solve and algorithm or mathematical problem.

[Alzxcvb]

1. What does the EVM do?
   It protects the CPU from malicious code that may be on the eth blockchain

2. What is the format of the instructions that the EVM can read?
   bytecode which is converted from human readable code written in solidity

3. What is the relationship between the programming language Solidity and Bytecode?
   solidity is human readable and writable and converts to bytecode which is EVM readable and usable

4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
   Because bitcoin is not a turing complete language and does not contain loops like ethereum’s solidity does/can

5. What is a Turing Complete programming language?
   One which can solve any problem you can imagine using the programming language (it has to have loops)

[Muckers]

1 Etherium virtual machine evm on every cpu which runs a node and it processes the smart contract
2 reads the byte code which is generated by solidity
3 solidity is the program code that results in the bytecode instructions
4 its software is a non turing complete
5 turing complete programming language is solidity

[FreeSpirit2222]

1. What does the EVM do?

The EMV enables all the nodes in the network to run the same copy of the ETH blockchain. EMV also runs the code for smart contracts.

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

3. What is the relationship between the programming language Solidity and Bytecode?
   Programmers write their code in Solidity, which is then compiled into Bytecode which the EVM can then read and execute.

4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
   the reason for that is because Bitcoin algorithm cannot solve all the complex problems. Like for instance Bitcoins code is written in Script which is not turing complete. Solidity is turing complete and therefore can solve complex problems.

5. What is a Turing Complete programming language?
   Solidity is a turing complete language, because it has loops. Which mean code can be executed over and over again and much as you like.

[AlanPaul]

1. What does the EVM do? The Ethereum Virtual Machine executes the binary code stored as the Smart Contract and passes the result of this execution to the Ethereum blockchain.
2. What is the format of the instructions that the EVM can read? Complied code that is generated by the Solidity language compiler.
3. What is the relationship between the programming language Solidity and Bytecode? SOLIDITY is a full Turing Complete language whereas ByteCode is Not Turing Complete and therefore cannot execute loops.
4. Why can’t Bitcoin run the same type of complex programs like Ethereum can? Because the Bytecode is limited in its instruction set and cannot perform loops.
5. What is a Turing Complete programming language? a TC language allows for iterative loops based on variable values.

[alex32]

1. What does the EVM do?
   A: EVM runs on all the nodes of the ethereum network ; it reads and interprets the smart contracts to make sure they abides by the rules of the ethereum protocol and makes sure nothing malicious gets to the CPU of the node it is operating on. it also reads and interprets the smart contract so that the CPU can carry out the necessary functions.
2. What is the format of the instructions that the EVM can read?
   A: EVM reads bytecode
3. What is the relationship between the programming language Solidity and Bytecode?
   A: smart contracts are written in Solidity and then compiled into bytecode so that the EVM can interpret it.
4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
   A: because Bitcoin uses Script as the programming language, and Script is not Turing Complete and can not run loops. because of this it can only run basic programs.
5. What is a Turing Complete programming language?
   A: a Turing Complete programming language can be used to solve any computational problem with math. Solidity is an example.

[MosesCruz22]

1. EVM is an application that reads Smart Contracts and “tells/commands” a CPU how and what to execute, based on the smart contract instructions.

2. ByteCode

3. Solidity is the programmable language within the Ethereum blockchain. Bytecode is what Solidity creates as “instructions” of the contents of a smart contract.

4. Because BITCOIN is still using a “web 1.0” version considered it is only transactions that are able to be done within the network.

5. A turing complete programming language is a language that can solve various complex problems. One unique attribute is that a turing complete language can conduct “loops” or various attempts without having to program that specific action.

[Jakub]

@filip

• What does the EVM do?
• What is the format of the instructions that the EVM can read?
• What is the relationship between the programming language Solidity and Bytecode?
• Why can’t Bitcoin run the same type of complex programs like Ethereum can?
• What is a Turing Complete programming language?

1. EVM reads the instructions, verify if they’re not breaking the rule, let CPU execute them
2. Instructions needs to be in bytecode -> compiled using Solidity language or any other language.
3. Solidity compile the instruction and put into a bytecode which is easily readable by EVM
4. It’s may be too heavy, impact block size, scamming activity may appear. Bitcoin is digital gold and needs to stay as it is, separately. Small smart contracts on Bitcoin can be written in script for instance if you share a wallet with your partner and want to have double signing of the transaction.
5. It’s a program which allow you to program anything you can think of. Additional it allows to have a loops - type of feature to execute the same action several times.

[Dreddman]

1. What does the EVM do?
   Ethereum Virtual Machine. Executes the instructions of the smart contract.

2. What is the format of the instructions that the EVM can read?
   Byte code complied from programming languages written in Solidity or Viper.

3. What is the relationship between the programming language Solidity and Bytecode?
   Solidity is the programming language which is complied to create the byte code for EVM to execute

4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
   Bitcoin is not turing complete - it can only do simple tasks.

5. What is a Turing Complete programming language?
   A programming language which can be programable to perform complex programming tasks.

[CryptoWutang]

1. It reads the instructions of a smart contract and tells the cpu what to do, also ensures nothing malicious happens on the network.
2. Bytecode
3. Solitidy is the original format the code is written in, then put through a complier, comes out in Bytecode which the EVM can read and instruct the CPU to do.
4. Bitcoin is not a Turing complete program, its programming language script is limited to simple tasks.
5. Ex. Ethereum. A Turing complete program can handle complex programs and commands, anything imaginable can be written. It also is the looping capable.

[DoubleTrouble]

1. What does the EVM do?
   It runs smart contracts.
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 compiled into byte code than deployed onto EVM.
4. Why can’t Bitcoin run the same type of complex programs like Ethereum can?
   Bitcoin isn’t ,Turing Complete and can’t run complex programming like Ethereum.
5. What is a Turing Complete programming language?
   Turing complete means that you may program anything including loops.

[Arnaud]

1. What does the EVM do?
   It read the instruction of the smart contract and tell the CPU what to do next

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

3. What is the relationship between the programming language Solidity and Bytecode?
   Solidity is converted into Bytecode by a compiler

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

5. What is a Turing Complete programming language?
   It’s a language that can be programmed to do anything

[JDW]

Homework on EVM

What does the EVM do?

EMV : Ethereum virtual machine.

EVM application runs on all nodes executing Smart Contracts > gives instructions to the CPU.

It basically interprets (in byte code) and executes the smart contracts.

It sits between the Smart Contract & the CPU for security.

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

Bytecode

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

Solidity is the programming language which is converted into byte code for the smart contract which is in turn read by the EVM.

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

It is not a turing complete programming language.

What is a Turing Complete programming language?

A Turing complete programme is one that can perform any computation (including loops which are feature that allows you to do one thing several times… this reduces the need to write every instruction.

[m_tag8]

@filip

1. What does the EVM do?

EVMs can run instructions and basically command the CPU what to do.

@filip

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

EVM can read byte code which is translated from solidity. Solidity is the native language of Ethereum.

@filip

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

Solidity is what the programmer writes and bytecode is what the computer reads.

@filip

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

Bitcoin has less computing logic than ethereum. Bitcoin does not have a programming platform so developers cannot create smart contracts in the Bitcoin network.

@filip

5. What is a Turing Complete programming language?

A programming language where loops and other functions can be performed.

[justwest]

1. EVM (Eth Virtual Machine) runs smart contracts executed across CPUs (nodes) in the network. Through propagating programmable instructions encapsulated in an EVM, the network can execute actionable tasks in a safe, trustless manner - limiting exposer to malicious attacks launched directly through CPUs.

2. programmable instructions are written in EVM bytecode

3. Solidity is the programming language which Ethereum smart contracts are written. Through a compiler, instructional data is consolidated into bytecode for more efficient propagation across the network to execute ‘final state’ consensus.

4. Bitcoin script is not ‘turing complete’ which means it doesn’t have full functionality to execute these smart contracts on it’s own. Solidity, in addition to being more robust (TC), it’s language runs loops of repetitive instructions that would spam the btc network, causing congestion.

5. turing complete programming languages are extremely flexible, allowing a vast array complex programs to be written with it. the best analogy seems to be the differentiation between web 1.0 and web 2.0. non-turing languages have limited functionality (equivalent to web 1.0), and turing complete programming language allows flexibility to create more complex applications (equivalent to web 2.0 scaling).