Pinned Memory help with understanding

Hello, it’s my first visit here so please show tolerance ^^

I’m student from Poland, recently started to learn about CUDA.

I would be grateful if anyone would explain or provide me with some documentation upon Pinned Memory.
I checked part of the documentation put on main site, but i didn’t find any explanation of what is it.
I will be grateful for every piece of information.

Thanks for help,

Have a look at section 3.2.5 ‘Page-Locked Host Memory’ in the “CUDA C Programming Guide” and section 3.1.1 ‘Pinned Memory’ in the “CUDA C Best Practices Guide”.