EOS was created to support the operation of decentralized applications (dApps).  The project focuses on the problems developers run into when deploying dApps on blockchain networks-especially around scalability.  It addresses this by building an operating-system-like foundation where applications can be developed. The software supports essentials like accounts, authentication, databases, asynchronous communication, and the ability to schedule application workloads across multiple CPU cores.

What are EOS key features and how does it work?

At its core, the EOS blockchain is built to emulate the performance of a traditional computer. Because of that, its underlying software draws on computing ideas that feel familiar. 

Running dApps on the network mainly depends on three resources:

Since EOS is tied to purchasing access to these resources, developers need EOS tokens to operate their applications. 

Even so, dApps built on EOSIO don’t charge users for transactions, so EOS remains effectively free for dapp users to transfer. Instead, those expenses are shifted to Dapp developers, who pay for the network resources. Information about emissions is notable here (~5% inflation i suppose) + there is no max supply.

For securing the blockchain, EOSIO relies on a delegated proof-of-stake (DPoS) consensus method. With DPoS, a real-time voting and reputation process determines who is allowed to produce the next block. In practice, anyone holding EOS can contribute to running the network, and having more tokens increases the likelihood of being selected for network duties. 

The reputation layer also means an account may be blocked for poor performance. At the same time, EOS block producers have significant control over network participants. For instance, they can freeze accounts, and only 15 out of the 21 EOS block producers need to vote to block an account. This has fueled criticisms that the EOSIO blockchain design could be misused and become overly centralized.

Better to mention the number of validators. (21 mb?) So the speed and free transactions in general come from big centralization.  Each EOS token can be staked and represents one vote in governance votes on the platform. 

What is noteworthy about EOS.IO?

EOSIO uses a more hands-on, distinctive governance model. For example, users can vote and make decisions that change the software’s operating rules.  By simply holding EOS, a user gains the ability to vote, and block producers carry out any decisions that are approved. 

Where can you buy EOS.IO?

EOS can be purchased on both CEXs and DEXs as listed here.