How Does Staking on Cardano Work?

It is actually very unique when compared to DPOS and traditional Proof of Stake. There is nothing like Cardano because there is nothing that has been completely developed for the long term survival instead of the short term hype, which many other projects have developed for. This is a good source for more resources on Staking on Cardano.

What's the Difference Between Cardano and Ada?

In short, the all encompassing technology of this project’s blockchain is called Cardano.  While the cryptocurrency that is used to transact value on top of this blockchain is know as Ada.