What is the difference between a physical and virtual address? Please contrast and clarify.
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What is the difference between a physical and virtual address? Please contrast and clarify.
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- Computer Science Explain in detail the steps in translating a 24-bit Virtual Address to a 32-bit Physical Address in a system with a two-level page table where the page directory is 32 entries and the size of each page table is 512 entries. Include the length of the bit fields that make up the Virtual Address and the Physical address.what is the use of MMU (Memory Mgmt Unit)? Runtime mapping from virtual address to Physical address compile time mapping from physical address to virtual address Runtime mapping from absolute address to Physical address compile time mapping from physical address to absolute addressA logical and physical address must be defined.
- Computer Science Please explain in detail the steps in translating a 24 bit virtual address to a 32 bit physical address in a system with a two-level page table where the page directory is 32 entries and the size of each page table is 512 entries. Include the length of the bit fields that make up the virtual address and the physical address.How are physical and virtual addresses different? Describe and compare.Explain the distinction between logical address and linear address, as well as the relationship between the two.
- For the following problems assume 1 kilobyte (KB) 1024 kilobytes. 1024 bytes and 1 megabyte (MB) For this problem, assume you have address translation hardware with the following 1. properties: Virtual addresses, physical addresses, and page table entries are 32 bits wide The page size in the system is 4 KB A virtual address is a page number followed by a byte offset within the page (a) How many bits of the virtual address must be used for the offset, so that every byte in the page can have a unique address? (b) How many bits are left over in the virtual address to store the page number? (c) How many different page numbers does an address space in this system support? (You can express this as a power of two) (d) If a page table consists of a page table entry for each page number in an address space, how much space in MB would the page table take up if it were stored in physical memory?Explain the difference between logical and physical addresses using exampleIn most multiprogrammed systems, user programs access memory through virtual addresses, while the operating system uses raw physical addresses to access memory. What are the implications of this design on the initiation of 1/0 operations by the user program and their execution by the operating system?