Before I continue, let me say that holmz gets it, i.e. in reference to my post. No BS, no put down or what is too commonly seen on this site, so thanks for that. Better that we can explain our writings to each such as is being done here.
Now I do agree with the idea that this involves more than a single component. The basic question however, now addressed, was about current and it's definition for the common man. We tend to automatically answer in a way we know, but not everyone knows the meaning behind V=IR, or E=mc2 for that matter. So from the beginning there little chance by this definition that the OP will 'get' the meaning.
Man, I do remember all the talk back in the day about current/amperage output of power amps, X WPC, TIM and anything 'new' to sell. In some cases it was relevant for the consumer, but then not so much in other cases.
Once the idea of current is basically understood, then it is time to move to the next logical step of current need. Sorry, couldn't resist.