The lower the number on the cache (L1, L2, L3), the closer the cache chip is to the CPU.
Book two says that L1 cache is used for input going into the CPU and L2 cache is used for the output coming out of the CPU and going onto the system bus. It states nothing of L1 cache being closer to the CPU than L2.
I believe the 2nd book to be correct. Can someone please explain?
Thank you for any help.