So one is a security guard with an address book that takes the name, checks for the number, if the number exists then it let's you go there?
Not really, it just tells you where to find what you're looking for. You have to actually go get it (or your slave, aka browser).
The other gives you an address so you know what your house number is on your block?
You don't really care about where you live, although if you ask nicely, you can still chose which house you want, but some bad things will happen if some's already there! You just want him to remember where you live so that he'll be able to deliver the pizza you're going to order at the right place.
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So one is a security guard with an address book that takes the name, checks for the number, if the number exists then it let's you go there?
The other gives you an address so you know what your house number is on your block?
Not really, it just tells you where to find what you're looking for. You have to actually go get it (or your slave, aka browser).
You don't really care about where you live, although if you ask nicely, you can still chose which house you want, but some bad things will happen if some's already there! You just want him to remember where you live so that he'll be able to deliver the pizza you're going to order at the right place.