There some confusion going on so let me try and best...

How does your brain work right now? You see something on tv and you 'remember' it. You smell chicken cooking in the oven and you remember and recognize that smell again. This computer only has software on it that digitally recreates those sense your human body had. Then it sends those signals onto wires connected to your brain in the same places where your nerves connected the brain to the rest of your body. So when this brain is "reading" some file, its actually looking at a document and signals are sent through to where your eyes used to be connected to your brain.

Am I making sense?