I read komodo's article on what is UTXO https://komodoplatform.com/whats-utxo/ and what I understand is it's like a different denomination of money($1, $5, $10, etc.). UTXO is like a pocket wallet with different money denomination but provides the same total balance of what funds you currently have.

i.e. I have a $500 in my wallet, It is either denominated as
five $100
ten $50
twenty-five $20

Some terms are too technical that I can't understand so if someone explains it in a more lighter way that would be great. I want to know these 2 important things the article talked about.
"it makes Bitcoin-protocol coins capable of supporting Turing complete smart contracts and decentralized applications. These UTXO-based smart contracts are language agnostic and allow every UTXO to have a unique consensus mechanism."
"UTXOs are important for Komodo’s atomic-swap-powered decentralized exchange. Komodo is the world leader in atomic swap technology."