Polkadot- IntroductionPolkadot is the magnum opus of Dr. Gavin Wood, the founder of Ethereum and creator of Solidity (the programming language used by Ethereum).It enjoys two main competitive advantages over other similar platforms.
Just like Ethereum and Cardano, Polkadot also allows the creation of Smart Contracts.Although Smart contracts serve great importance, there is no denying the fact that there already exists a lot of highly effective Smart contract platforms which are comparatively better than Polkadot.Therefore, the more important advantage for Polkadot is the other one.
Interoperability- The paramount of PolkadotThe limitation displayed in the current-gen Blockchain system is that there exist too many.
These blockchains operate in isolation with complete independence from each other, and as of yet, there is no way of having them communicate and transact with each other in an efficient manner.What Polkadot is working towards is bridging this gap by providing interoperability between all Blockchain networks.
It will allow any and all Blockchain to be able to communicate and transact with each other in a trustless way under the mutual grounds of Polkadot itself.
$DOT- The Polkadot native tokenDOT is the digital token used in the Polkadot network and it has 3 main uses: Governance, Staking, and Bonding.Governance: All DOT token holders are given the right to vote over important decisions regarding Polkadot.