P2E is a shortened form of “Play to earn games.” Blockchain-based games that users tokens play to gain crypto.
P2P is a decentralized network, where each computer acts as a server and a client simultaneously. Two people can interact straightly with each other without a third party.
A Public Ledgre is a system that keeps records and could be called a data storage container. The ledger manages participants' identities anonymously, their cryptocurrency balances, and records all the transactions between network participants.
Proof-of-Stake (or PoS) is a consensus mechanism for blockchain needed to verify transactions and create new blocks, which is an alternative to PoW. Users lend their coins so that validators can verify transactions without the need for expensive hardware and computing power.
Proof-of-Work (or PoW) is a consensus mechanism needed to validate transactions and create new blocks. PoW requires miners to solve complex mathematical puzzles using hardware and a lot of computing power to validate transactions and add new blocks.
Protocol in crypto is a set of rules and procedures that govern how cryptocurrencies operate, including aspects like transaction validation, consensus mechanisms, and network communication.