Rajeev Thakkar lucidly explains the basics of three terms which have entered our lexicon relatively recently…
Presentation file (in description below): https://ppfasfof.com/blockchain-crypto-defi-other-mumbo-jumbo/
Resources:
https://bitcoin.org/en/
https://ethereum.org/en/
https://www.sec.gov/Archives/edgar/data/1679788/000162828021003168/coinbaseglobalincs-1.htm