A certain computer provides its users with a virtual address space of 2⁴⁸ bytes. The computer has 2³⁴ bytes of physical memory. The virtual memory is implemented by paging with virtual addresses formatted as follows: the left 20 bits are used for the Virtual Page Number and the right 28 bits are used for the OFFSET. (1) How many virtual pages can a virtual address space in this system have? How large is each page? Express your answer in KB, MB, or GB, whichever is most appropriate. (2) How many physical frames does this computer have in physical memory?