What's the difference between 8332 and 8333 ports on bitcoind?

[Uniex]

According to docs:

-rpcport=<port>   Listen for JSON-RPC connections on <port> (default: 8332 or testnet: 18332)
-port=<port>   Listen for connections on <port> (default: 8333 or testnet: 18333)

So what's the difference ?

[legend018]

 I read that 8333 is the peer-to-peer port for the Bitcoin network, while 8332 is the JSON/RPC port

Also found the following definition:  RPC needs a network transfer protocol (like TCP/IP) to do its job, but RPC is a higher-level protocol and fulfills a different purpose than merely sending unstructured data from one computer to another.