On a simple paging system with 2 24 bytes of physical memory, 256 pages of logical address space, and a page size of 2 10 bytes. 1. How many bits are needed to store an entry in the page table (how...

On a simple paging system with 2²⁴ bytes of physical memory, 256 pages of logical address space, and a page size of 2¹⁰
bytes.

1. How many bits are needed to store an entry in the page table (how wide is the page table)? Assume a valid/invalid 1-bit is included in each entry.

2. If the page table is stored in the main memory with 250nsec access time, how long does a paged memory reference take?

3. If the page table is implemented using associative registers that takes 95nsec. and main memory that takes 200nsec, what is the total access time if 75% of all memory references find their entries in the associative registers?