Cardano is a decentralized, blockchain based system, powered by the ADA coin, the cryptocurrency which runs on the Cardano platform. Much like Ethereum, it is a smart contract-based system and can be used to run Decentralized Apps (called DApps). But Cardano is a layered system; i.e.

It has a separate layer which runs ADA exchange, and
A separate one which runs the Smart Contracts.
Cardano claims to be the first cryptocurrency which runs on a scientific peer review, which ensures its safety.

The aim of this project is to create a sustainable ecosystem which separates transaction of ADA coin and usage of smart contracts into different layers, and on improves the shortcomings of Bitcoin and Ethereum.

Cardano is an attractive choice for many companies and corporations, especially those involving heavy uses of contracts. According to Cointelegraph, the Ethiopian Government and Cardano/ADA signed a Memorandum of Understanding, which will allow the government to employ the Cardano program in its Agritech sector.