The way CPU, NET and RAM power your WAX account is identical to EOS. The major differences for you as a user are that WAX does not support Power Ups and that you can simply pay a transaction fee instead of topping up resources. We cover the nature of these resources in detail in the EOS section, but to reiterate briefly: 

• CPU determines how much time a block producer will dedicate to processing your transactions. 

• NET is the bandwidth of your transactions, i.e. how much space can be allocated to them during processing.

• RAM is your data storage cap for all information considering your account — ownership, keys, balances, etc.