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And yet, I interview recent Comp Sci grads from upper tier University of California schools with 3.75 and above GPAs who try and tell me that a null pointer in a struct takes up zero memory. Then, when I ask them to correct themselves, I sometimes find out they have no idea how much data a pointer takes up.

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Well, that is implementation defined, surely the only reasonable answer here is `sizeof(void * )` chars... where a `char` is probably 8 bits.

Or, they could ask if they are on a 32 bit or 64 bit system. They don't have to be absolutely pedantically correct. They just need to demonstrate they have a clue, as opposed to none.

I feel obliged to ask: are there any modern (post-1990) ISAs where a char _isn't_ 8 bits?

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