What is Ethereum?

Ethereum is a decentralized, open-source blockchain platform that allows developers to build and deploy smart contracts and decentralized applications (dApps). Launched in 2015 by Vitalik Buterin and a group of co-founders, Ethereum is the second-largest cryptocurrency platform by market capitalization, next to Bitcoin. However, Ethereum is more than just a cryptocurrency. It aims to be a global platform for decentralized computing.

Key features of Ethereum:

• Smart Contracts
  These are self-executing contracts with the terms of the agreement directly written into code. Smart contracts automatically enforce and execute actions when specific conditions are met, reducing the need for intermediaries.

• Ether (ETH)
  Ether is the native cryptocurrency of the Ethereum network. It is used as "fuel" to pay for transactions and computational services on the Ethereum network. While similar to Bitcoin in that it can be traded and used as a currency, its primary purpose is to power the platform.

• Decentralized Applications (dApps)
  Ethereum enables the development of decentralized applications that run on the blockchain without any downtime, fraud, or interference. This opens up possibilities for various industries, such as finance, gaming, and real estate, to operate in a more secure and transparent way.

• Decentralization
  Like Bitcoin, Ethereum operates without a central authority. Transactions are verified by a global network of computers (called nodes), making it more resistant to censorship and fraud.

• Ethereum 2.0
  In an effort to improve scalability, security, and energy efficiency, Ethereum made a transition in 2022 from Proof of Work (PoW) to Proof of Stake (PoS). This was one of the most significant technological upgrades in the history of blockchain technology. This change, known as Ethereum 2.0, marks the shift from an energy-intensive and less scalable system to a more efficient and sustainable way to validate transactions and secure the network.
  
  
  

What is the difference between Ethereum and Bitcoin? 

While both Bitcoin and Ethereum operate on blockchain technology, they have distinct purposes. Bitcoin is primarily designed as a peer-to-peer digital currency system, focusing on secure and fast value transfers. Ethereum, on the other hand, is more versatile and functions as a platform for building decentralized applications. Its primary innovation lies in enabling smart contracts and decentralized computing, whereas Bitcoin is primarily focused on financial transactions.