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What is Cosmos

If you don't have any idea what Cosmos is, here is a beginner's guide to dive into Cosmos network.
Cosmos is a decentralized network of independent parallel blockchains that offers a unique approach to solving the issues of blockchain fragmentation and lack of interoperability. It is built on top of a consensus engine called Tendermint that allows the creation of custom blockchains that can interoperate with each other. By providing a solution that enables seamless communication between different blockchains, Cosmos aims to create a more connected and efficient blockchain ecosystem.

Core features in Cosmos

Cosmos SDK

Cosmos offers a range of tools that make it easier for developers to build and deploy decentralized applications. Cosmos provides Cosmos SDK, which is a Golang-based framework for building interoperability and modularity. For security applications, it performs framework functions like npm in Tendermint Core. Anyone can create Cosmos SDK modules and it is a feature-based system that allows developers to better reason about the security of interactions between modules.
With the Cosmos SDK, developers simply define a state machine and CometBFT handles replication over the network. (CometBFT is an independent application engine that handles the networking and consensus layers of the blockchain.) CometBFT passes transactions to applications through an interface called ABCI that applications must implement.

Interchain Relayer

Interchain Relayer is a powerful tool that enables developers to build and deploy decentralized applications that can leverage the full potential of the Cosmos ecosystem. Relayer has ability to facilitate cross-chain communication between different blockchains within the Cosmos network. Relayers are made possible through the use of the Inter-Blockchain Communication (IBC) protocol. Relayers can be used in cross-chain swaps, decentralized exchanges, and other forms of asset transfer. These use-cases are possible due to ability to provide real-time updates and notifications to users. This is achieved through the use of webhooks and other notification mechanisms, which enable users to receive updates about the status of their transactions and other events in real-time.

Interchain Account (ICA)

Interchain Account(ICA) enables the transfer of assets between different blockchains within the Cosmos ecosystem. ICA allows users to easily send and receive tokens across different chains without the need for a centralized exchange or a third-party custodian. ICA also allows for the creation of new tokens that can be used across different chains, and can support a wide range of use cases.

Interchain Query (ICQ)

Interchain Query (ICQ) is built on top of the Inter-Blockchain Communication (IBC) protocol, which enables secure and reliable communication between different blockchains. ICQ allows for the exchange of data between different blockchains. With ICQ, developers can access and utilize data from other chains, which can be used to improve the functionality and user experience of their own applications. ICQ also enables the creation of decentralized applications that can leverage data from multiple chains, thereby increasing their efficiency and scalability